Ioannis Koniaris (Greek: Ιωάννης Κόνιαρης, 1801–1872) was a Greek politician of the 19th century, who was twice elected as Mayor of Athens, serving from 29 August 1854 until 22 November 1853 and again until 23 November 1854.

Sources

• Ioannis Arsenis, Mihail Rafailovic, ed. (1881). Poikili Stoa: Ethniki eikonografimeni epetiris, Etos 1/16 1881-1914 (in Greek). Athens: Εστία. Retrieved September 10, 2009.
• Ioannis Koniaris a synoptic biographical information from the Modern Greek Information Institute (in Greek)
• City of Athens - Historic Mayors^{[permanent dead link]} (in Greek)