John Tobin may refer to:
- John Tobin (dramatist) (1770–1804), author of The Honey Moon
- John F. Tobin (fl. 1900s), American football player and coach
- Jack Tobin (1892–1969), right fielder in Major League Baseball
- Jackie Tobin (1921–1982), third baseman and second baseman in Major League Baseball
- John M. Tobin, Wall Street broker in part representing Cornelius Vanderbilt (see Hiram Bond)
- John Tobin (Nova Scotia politician) (1810-1869), politician in Nova Scotia
- John Michael Tobin (1841–1898), American Civil War officer and Medal of Honor recipient
- John Tobin (rugby league), rugby league footballer
- John Tobin (boxer), Grenadian Olympic boxer
- John Tobin (Boston City Councilor)
- Johnny Tobin (1921-1982), American baseball player
- Tip Tobin (1906-1983), real name John Martin Tobin, American baseball player