John Dempsey
John Dempsey is the name of the following people:
- John Dempsey (cartoonist) (1919–2002), American cartoonist
- John Dempsey (soccer player) (born 1946), Irish soccer player
- John Dempsey (cyclist) (born 1979), Irish cyclist
- John Joseph Dempsey (1879–1958), American politician (New Mexico)
- John N. Dempsey (1915-1989), American politician (Connecticut)
