Thog may refer to
Thog (comics), a Marvel comics character the THOG problem, a logic puzzle by psychologist Peter Wason Thog, a character in the webcomic The Order of the Stick Thog (Muppet), a large blue monster in The Muppet Show Haley Thogmartin, a HouseGuest from Big Brother 28, comically known as "Thog"