Thomas Harrington

Thomas Harrington may refer to:

• Thomas Harrington (died 1460), English knight
• Thomas Harrington (diver), British Olympic diver
• Thomas Harrington (FBI), Associate Deputy Director of the United States Federal Bureau of Investigation
• Thomas Harrington (footballer), English footballer
• Thomas Harrington & Sons, a coachbuilder
• Tom Harrington (footballer) (1908–1988), Australian rules footballer
• Tom Harrington (journalist), Canadian radio and television journalist
• Thomas Harrington (baseball) (born 2001), American baseball player