This is a list of libraries which have significant special collections related to Christianity, broken up by location. For better collections relating to specific church bodies or denominations, see Wikipedia:WikiProject Christianity/Special collections/churches.

Canada

• Calgary - Anglican Diocese of Calgary Archives [1]
  • Mennonite Historical Society of Alberta [2]
  • St. Vladimir's Ukrainian Orthodox Church Cultural Centre Library [3]
• Edmonton - Anglican Provincial Archives of Alberta [4]

• Abbotsford - Mennonite Historical Society of British Columbia [5]
  • Summit Pacific College Library, Pentecostalism [6]
• Kelowna - Anglican Diocese of Kootenay Archives [7]
• Prince Rupert - Anglican Diocese of Caledonia Archives [8]
• Vancouver - Anglican Princial Synod of BC and Yukon Archives, also including archives of the defunct Anglican Diocese of Cariboo [9]
• Victoria - Anglican Diocese of British Columbia Archives [10]

• Winnipeg - Anglican Diocese of Rupert's Land Archives [11]
  • Center for Mennonite Brethren Studies in Canada [12]
  • Mennonite Heritage Center archives [13]

• Fredericton - Provincial Archives of the Anglican church in New Brunswick, including those of the Anglican Diocese of Fredericton [14]
• Moncton - Atlantic Baptist University, Canadian Baptists [15]

• Gander - Diocese of Central Newfoundland Archives [16]
• St. Johns - Diocese of Eastern Newfoundland and Labrador Archives [17]

• Halifax - Anglican Diocese of Nova Scotia and Prince Edward Island Archives [18]
  • Atlantic School of Theology [19]

• Aylmer - Heritage Historical Library, Mennonite
• Hamilton - McMaster University Libraries, archives of the Anglican Diocese of Niagara and of the Canadian Baptists [20]
• Keewatin - Archives of the Anglican Diocese of Keewatin [21]
• Kingston - Anglican Diocese of Ontario Archives [22]
• Ottawa - Anglican Diocese of Ottawa Archives [23]
• Sault Ste. Marie - Diocese of Algoma and the Ecclesiastical Province of Ontario Archives [24]
• Sudbury - Laurentian University, Archives of the Anglican Diocese of Moosonee [25]
• Toronto - Regis College Library - includes material by and about Bernard Lonergan [26]
  • University of Toronto - Pontifical Institute of Medieval Studies includes the papers of Etienne Gilson [27]
    • Knox College Caven Library includes a John Calvin Collection [28]
    • St. Michael's College John M. Kelly Library includes a Counter Reformation collection [29]
  • Anglican Church of Canada General Synod Archives [30]
  • Anglican Diocese of Toronto Archives [31]
  • Ukrainian Canadian Research and Documentation Centre [32]
  • Victoria University [33]
• Waterloo - Contrad Grebel University College Mennonite Archives of Ontario [34]

• Montreal - Canadian Centre for Ecumenism [35]
  • Anglican Diocese of Montreal and the Ecclesiastical Province of Canada Archives [36]
• Sherbrooke - Bishop's University, archives of the Anglican Diocese of Quebec [37]

• Prince Albert - Anglican Diocese of Saskatchewan Archives [38]
• Regina - University of Regina, hold archives of Anglican Diocese of Qu'Appelle and the Ecclesiastical Province of Rupert's Land [39]
• Rosthern - Rosthern Junior College Archives, Mennonite [40]

• Whitehorse - Anglican Diocese of Yukon Archives [41]

England

• London - Church of England Record Centre [42]

Switzerland

• Geneva - Ecumenical Library of World Council of Churches [43]

United States

• Kodiak - Saint Herman Orthodox Seminary [44]

• Angwin - Nelson Memorial Library at Pacific Union College, Seventh-day Adventists collection [45]
• Fresno - Fresno Pacific University Center for Mennonite Brethren Studies [46]
• Loma Linda - Heritage Room of Loma Linda University, Seventh-day Adventists collection [47]
• Malibu - Pepperdine University Libraries [48]
• Redlands - University of Redlands, American Baptist Churches USA [49]
• Santa Barbara - University of California Santa Barbara American Religions Collection - apparitions of the Virgin Mary, largest public collection of Jehovah's Witnesses literature, Old Catholicism, Seventh-day Church of God material and New Religious Movements [50]

• Denver - Muddy Creek Farm Library, Mennonite [51]

• Hartford - Library of Hartford Seminary [52]
• New Haven - Berkeley Divinity School of Yale University, archives of the Episcopal Church [53]

• Catholic University of America Department of Archives and Manuscripts, Catholic Church [54]
• Georgetown University Libraries, Catholic Church [55]
• Howard University School of Divinity Library - special collection on Afro-American religion [56]
• Wesley Theological Seminary, world's best collection on the Methodist Protestant Church [57]

• Miami Gardens - Florida Memorial University, American Baptist Churches USA [58]

• Atlanta - Aquinas Center of Theology, Emory University [59]
  • Interdenominational Theological Center, Black Women in Church and Society and Black Methodists - [60]
  • American Baptist Historical Society [61]
  • Pitts Theology Library, Candler School of Divinity, Emory University, Methodism [62]

• Aurora - Jenks Memorial Collection at Aurora University, archives of Advent Christian Church [63]
• Chicago - Chicago Theological Seminary [64]
  • Disciples Divinity House of the University of Chicago [65]
  • Evangelical Lutheran Church in America Archives [66]
  • Lutheran School of Theology Library, Lutheranism [67]
  • McCormack Theological Seminary, Presbyterian Church (USA) [68]
  • Meadville Lombard Theological School, Unitarian Universalism [69]
  • Moody Bible College, Christian fundamentalism, Dwight Moody, and Jewish evangelism[70]
• Elgin - Brethren Historical Library and Archives, archives of the Church of the Brethren General Board [71]
  • Judson University, American Baptist Churches USA [72]
• Evanston - United Library of Garrett-Evangelical and Seabury-Western Theological Seminaries, Methodism [73]
• Lincoln - Lincoln Christian College and Seminary [74]
• Metamora - Illinois Mennonite Historical and Genealogical Society [75]
• Oak Brook - Bethany Theological Seminary, Brethren Church archives [76]
• Oregon - archives of Church of God (Abrahamic Faith)
• Wheaton - Billy Graham Center at Wheaton College for evangelicalism or fundamentalism[77]

• Elkhart - Associated Mennonite Biblical Seminaries Library, large collection of Mennonite material [78]
• Franklin - Franklin College American Baptist Churches USA [79]
• Goshen - Goshen College Mennonite Historical Library [80]
• Greencastle - Roy O. West Library at DePauw University, United Methodist Church [81]
• Indianapolis - American Evangelical Christian University, American Evangelical Christian Church [82]
  • Christian Theological Seminary, Christian Church (Disciples of Christ) [83]
  • Marston Memorial Historical Library Free Methodist Church [84]
  • Wesleyan Archives & Historical Library, Wesleyan Church [85]
• Notre Dame - Medieval Institute at University of Notre Dame, includes material on higher education in the middle ages [86]
  • Archives of the University of Notre Dame, Catholic Church [87]
• Richmond - Quaker collection at Earlham College, material on native American Quakers[88]
• Winona Lake - Morgan Library of Grace College and Theological Seminary [89]

• Des Moines - Grand View University Danish Immigrant Archives, Danish Lutherans in America [90]
• Dubuque - Emmaus Bible College, largest public-access collection of material on the Plymouth Brethren [91]
  • Wartburg Theological Seminary Library, Lutheranism [92]
• Kalona - Mennonite Historical Society of Iowa, archives

• Hillsboro - Tabor College Center for Mennonite Brethren Studies [93]
• North Newton - Mennonite Library and Archives [94]
• Ottawa - Ottawa University, American Baptist Churches USA [95]
• Wichita - Edmund Stanley Library at Friends University, Kansas Yearly Meeting and Quakers and native Americans [96]

• Jackson - Kentucky Mountain Bible College, Holiness movement [97]
• Lexington - Lexington Theological Seminary [98]
• Louisville - Southern Baptist Theological Seminary [99]
• Wilmore - Asbury Theological Seminary, Holiness movement and specifically the Free Methodist Church and Wesleyan Church [100]

• Baltimore - St. Mary's Seminary and University Library, Catholic Church [101]
• Silver Spring - Archives of the Seventh-day Adventists General Conference [102]

• Boston - Boston University New England Methodist Historical Library [103]
  • Congregational Library, American Congregational Association [104]
• Brookline - Holy Cross Greek Orthodox School of Theology [105]
• Cambridge - Library at Harvard Divinity School, Unitarian Universalism [106]
• Newton Centre - Andover Newton Theological School Library, American Baptist Churches archives [107]
• South Hamilton - Center for Advent Christian Studies at Gordon-Conwell Theological Seminary for Advent Christian Church archives, Goddard Library for a large collection of material about conservative Protestants, rare Bibles, Mercer Collection of Assyrio-Babylonian material [108],

• Berrien Springs - Andrews University, Seventh-day Adventists collection [109]
• Grand Rapids - Calvin College, Reformed Church [110]
• Hancock - Finlandia University, Lutherans of Finnish descent [111]
• Kalamazoo - Kalamazoo College, American Baptist Churches USA [112]
  • Medieval Institute at Western Michigan University - large collection including Cistercian manuscripts [113]

• Northfield - Howard and Edna Hong Kierkegaard Library, St. Olaf College - includes writings of Kierkegaard and a replica of his personal library [114]
• St. Paul - Bethel Seminary Library, archives of the Baptist General Conference [115]
  • Luther Seminary, archives of the Norwegian predecessors of the Evangelical Lutheran Church in America [116]

• Canton - Culver-Stockton College [117]
• Independence - Community of Christ archives, Community of Christ [118]
• Kansas City - William Broadhurst Library at Nazarene Theological Seminary, Church of the Nazarene [119]
• Liberty - William Jewell College American Baptist Churches USA [120]
• St. Louis - Concordia Historical Institute, Lutheran Church–Missouri Synod, National Evangelical Lutheran Church, Synod of Evangelical Lutheran Churches [121]
  • Covenant Theological Seminary, Presbyterian Church in America [122]
  • St. Louis University, Catholic Church [123]
• Springfield - Flower Pentecostal Heritage Center, Assemblies of God Archives [124]
• Webster Groves - Eden Theological Seminary [125]

• Madison - Drew University United Methodist Archives Center [126]
• New Brunswick - New Brunswick Theological Seminary, Reformed Church in America [127]
• Princeton - Princeton University Index of Christian Art project [128]
  • Speer Library, Princeton Theological Seminary, Presbyterian Church (USA) [129]
• South Bound Brook - Ukrainian Orthodox Church of the USA [130]

• Keuka Park - Keuka College, American Baptist Churches USA [131]
• New Platz - Huguenot Historical Society, Huguenots [132]
• New York City - American Bible Society [133]
  • Ecmenical Library of Interchurch Center [134]
  • Greek Orthodox Archdiocese of North and South America Archives [135]
  • Huguenot Society of America, Huguenots [136]
  • New York Public Library Black Religious Heritage Project [137]
  • St. Mark's Library at General Theological Seminary, archives of the Episcopal Church [138]
  • St. Nerses Shnorhali Library [139]
• Rochester - Kenneth B. Keating Library at University of Rochester, papers of the founder of the Free Methodist Church[140]
• Syosset - Orthodox Church in America Archives [141]

• Charlotte - Billy Graham Library [142]
• Durham - Duke Divinity School Library, Methodism [143]
• Elon - Primitive Baptist Library [144]
• Lake Junaluska - World Methodist Council [145]
• Montreat - Presbyterian Heritage Center at Montreat, Presbyterian Church (USA) [146]
• Raleigh - Shaw University, American Baptist Churches USA [147]
• Salisbury - W. J. Walls Heritage Hall Archives at Hood Theological Seminary, archives of the African Methodist Episcopal Zion church [148]
• Winston-Salem - Moravian Church Archives - Southern Region [149]

• Bluffton - Bluffton University Mennonite Historical Collections [150]
• Cincinnati - Nippert Memorial Library of the Cincinnati Historical Society German Methodist Collection, [151]
• Dayton - Center for United Evangelical Brethren Studies, United Theoloical Seminary, Methodism [152]
  • University of Dayton Marian Library - world's largest collection of Marian literature [153]
• Delaware - United Methodist Historical Society of Ohio Library at Ohio Wesleyan University [154]
• Fidnley - Winebrenner Theological Seminary Library, Church of God General Conference [155]
• Springfield - Wittemburg University, Lutheranism [156]
• Wilberforce - R. C. Ransom Memorial Library at Payne Theological Seminary - including material on the African Methodist Episcopal Church [157]

• Muskogee - Bacone College, American Baptist Churches USA [158]
• Tulsa - Oral Roberts University Library Holy Spirit Research Center, Pentecostalism [159]

• McMinnville - Linfield College, American Baptist Churches USA [160]
• Salem - Oregon Mennonite Historical and Genealogical Society [161]

• Bethlehem - Moravian College and Theological Seminary Reeves Library [162]
  • Moravian Archives - Northern Province [163]
• Blue Bell - Reformed Episcopal Church Theological Seminary [164]
• Gettysburg - Lutheran Theological Seminary at Gettysburg, Lutheranism [165]
• Gladwyne - Deaconess Community of the Evangelical Lutheran Church in America, Deaconess movement
• Grantham - Messiah College Brethren in Christ Historical Library and Archives [166]
• Harleysville - Mennonite Heritage Center Historical Library and Archives [167]
• Haverford - Haverford College Library, Quakers [168]
• Huntingdon - Beeghly Library at Juniata College [169]
• Intercourse - The People's Place, Mennonite [170]
• Lancaster - Lancaster Theological Seminary [171]
  • Lancaster Mennonite Historical Society [172]
  • Mennonite Information Center [173]
• Langhorne - Philadelphia Biblical University, Cyrus Scofield Biblical studies collection [174]
• Myerstown - Evangelical Congregational Church Center, also deals with Evangelical Association and United Evangelical Church [175]
• Philadelphia - Archives of the American Catholic Historical Society of Philadelphia, St. Charles Borromeo Seminary, Catholic Church [176]
  • Lutheran Archives Center at Philadelphia, Lutheran Theological Seminary, Lutheranism [177]
  • Presbyterian Historical Association, Presbyterian Church (USA), [178]
  • Temple University Center for African American History and Culture Black Women in the Church 1780-1970 [179]
    • Charles L. Blockson Afro-American Historical Collection [180]
  • Westminster Theological Seminary Montgomery Library - special collection on Reformed theology [181]
• Pittsburgh - Reformed Presbyterian Theological Library, Reformed Presbyterian Church in North America, [182]
• Richfield - Lauvers Mennonite Church [183]
• St. Davids - Eastern University, American Baptist Churches USA [184]
• Scranton - Polish National Catholic Church Archives, Old Catholicism [185]
• Swarthmore - Friends' Historical Library at Swarathmore College, Quakers [186]

• Providence - Rhode Island Historical Society, Unitarian Universalism [187]

• Charleston - Huguenot Society of South Carolina, Huguenots [188]
• Columbia - Benedict College, American Baptist Churches USA [189]
  • Lutheran Theological Southern Seminary, Lutheranism [190]
• Greenville - Bob Jones University for material on Christian fundamentalism and Christian music [191]
• Summerville - Cummins Memorial Theological Seminary, archives of the Reformed Episcopal Church [192]

• Freeman - Freeman Academy Historical Library, Mennonites [193]
• Sioux Falls - Sioux Falls Seminary, Kaiser-Ramaker Library, archives of the North American Baptist Conference [194]
  • University of Sioux Falls, American Baptist Churches USA [195]

• Cleveland - Lee University, Church of God (Cleveland, Tennessee) [196]
• Memphis - Harding Graduate School of Religion [197]
  • Historical Foundation of the Cumberland Presbyterian Church [198]
• Nashville - Disciples of Christ Historical Society, history of the Disciples of Christ and of the Stone-Campbell Movement [199]
  • Free Will Baptist College, archives of the National Association of Free Will Baptists [200]
  • Lipscomb University [201]
  • Southern Baptist Convention Archives [202]
  • The Upper Room Library Methodism [203]

• Abilene - Abilene Christian University [204]
• Austin - Archives of the Episcopal Church [205]
• Dallas - Bridwell Library Center for Methodist Studies at Perkins School of Theology, Southern Methodist University [206]
  • Turpin Library at Dallas Theological Seminary, Christian fundamentalism [207]
• Fort Worth - Texas Christian University [208]
• Waco - Southwestern Baptist Theological Seminary [209]

• Provo - Harold B. Lee Library at Brigham Young University, Mormonism [210]
• Salt Lake City - Archives of The Church of Jesus Christ of Latter-day Saints [211]
  • FamilySearch.org, Mormonism [212]
  • J. Willard Marriott Library at the University of Utah, Mormonism [213]
  • Utah State Historical Society Library, Mormonism [214]

• Alexandria - Salvation Army National Archives and Research Center [215]
• Harrisonburg - Menno Simons Historical Library at Eastern Mennonite University [216]
• Richmond - Library of the Union Theoligical Seminary in Virginia, Presbyterian Church (USA) [217]
  • Virginia Union University, American Baptist Churches USA [218]

• Philippi - Alderson-Broaddus College, American Baptist Churches USA, [219]

• Janesville - Seventh Day Baptist Historical Society [220]
• Mequin - Wisconsin Evangelical Lutheran Synod [221]