31
31 may refer to:
Years
[edit]Music
[edit]- Thirty One (Jana Kramer album), 2015
- Thirty One (Jarryd James album), 2015
- "Thirty One", a song by Karma to Burn from the album Wild, Wonderful Purgatory, 1999
Science
[edit]- Gallium, a post-transition metal in the periodic table
- 31 Euphrosyne, an asteroid in the asteroid belt
- (31) Euphrosyne I, a satellite of 31 Euphrosyne
Film and television
[edit]- 31 (film), a 2016 horror film
- 31 (Kazakhstan), a television channel
- 31 Digital, an Australian video on demand service
Transportation
[edit]- 31st (CTA station), a rapid transit station in Chicago
- 31 (MBTA bus), a bus route in Boston, Massachusetts
- 31 (RIPTA), a bus route in Rhode Island
Other uses
[edit]- Thirty-one (card game)
- Baskin-Robbins, a U.S. international ice cream parlor chain with the slogan, "31 flavors"