Jeanette, Jeannette or Jeanetta may refer to:
- Jeanette (given name), a given name (including a list of people and fictional characters with the name)
- Jeannette, Ontario, Canada
- Jeannette Island, Russia
- Jeannette, Pennsylvania, U.S.
- Jeannette Monument, United States Naval Academy Cemetery, Annapolis, Maryland, U.S.
- Jeanette State Forest, Minnesota, U.S.
- Jeanette (singer) (born 1951), singer
- Jeannette (comics), a DC Comics character
- USS Jeannette (1878), Arctic exploration vessel, converted warship
- USS Jeannette (SP-149), a USN patrol craft in WWI
- "Jeanette", a song by the Beat from Special Beat Service
People with the surname
- Buddy Jeannette (1917–1998), basketball player and coach
- Daniel Jeannette (born 1961), director of animation and FX
- Gertrude Jeannette (born 1914), actress
- Gunnar Jeannette (born 1982), racecar driver
- Joe Jeanette (1879–1958), heavyweight boxer
- Stanick Jeannette (born 1977), figure skater