A Hot tub is a small, manufactured pool or tub filled with hot water and used for relaxation, massage, or hydrotherapy.
Hot tub may also refer to:
- Hot Tub (Drawn Together episode)
- Hot Tub, an episode from the fifth season of Malcolm in the Middle
- The Hot Tub (Seinfeld episode)
- Hot Tub with Kurt and Kristen, a weekly comedy variety show
- Hot Tub Time Machine, a 2010 comedy film