James Dempsey

James Dempsey may refer to:

• James Dempsey (Scottish politician) (1917–1982)
• James Shannon Dempsey (1887–1955), Canadian politician in the Legislative Assembly of Ontario
• James Dempsey (poker player), English professional gambler
• James Dempsey (builder) (1768–1838), Australian pioneer
• James Dempsey (hurler) (born 1989), Irish hurler
• James C. Dempsey, United States Navy submarine commander