Union City may refer to:

Places in the United States

• Union City, California
• Union City, Connecticut
• Union City, Georgia
• Union City, Indiana
  • Union City Commercial Historic District
• Union City in Madison County, Kentucky
• Union City, Michigan
• Union City, Montana, a ghost town
• Union City, New Jersey
• Union City, Ohio
• Union City, Oklahoma
• Union City, Pennsylvania
  • Union City Historic District
• Union City, Tennessee

Other

• Union City (film), a 1980 American film
• Union City, a fictional town in the video game Urban Chaos
• Union City Recordings, a record label
• SS Union City, a cargo ship launched in 1909 as SS Iserlohn