Delahanty is a family name. Notable people with the surname include:
Dolores Delahanty, American civil rights activist Ed Delahanty, American Major League Baseball left fielder Frank Delahanty, American Major League Baseball left fielder Jim Delahanty, American Major League Baseball second baseman Joe Delahanty, American Major League Baseball left fielder Ray Delahanty, American urban planner and YouTuber Thomas Delahanty, American police officer Thomas E. Delahanty, American justice of the Maine Supreme Judicial Court Thomas E. Delahanty II, American United States Attorney for the District of Maine Tom Delahanty, American Major League Baseball third baseman
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