Thomas Day
Thomas Day may refer to:
Sports
- Tom Day , Welsh rugby union player
- Tom Day , American football player
- Tom Day , English footballer
Others
- Thomas Day , British author and abolitionist
- Thomas Day, 17th-century English choirmaster
- Thomas Day , English pirate and privateer active off New England
- Thomas Day , American lawyer, judge, and legal scholar
- Thomas Day , African-American furniture designer and cabinetmaker
- Thomas B. Day, American college president and physicist
- Thomas Fleming Day, British-born American sailboat designer/racer and magazine editor
- Thomas Cuthbert Day, British chemist, photo-engraver and geologist