Season 1 refers to a number of seasons from different series:
- Season 1 (Arrow), the first season of Arrow; aired October 10, 2012–May 15, 2013.
- Season 1 (The Flash), the first season of The Flash; aired October 7, 2014–May 19, 2015.
- The only season of Constantine; aired October 24, 2014–February 13, 2015.
- Season 1 (Vixen), the first season of Vixen; aired August 25, 2015–September 29, 2015.
- Season 1 (Supergirl), the first season of Supergirl; aired October 26, 2015–April 18, 2016.
- Season 1 (DC's Legends of Tomorrow), the first season of DC's Legends of Tomorrow; aired January 21, 2016–May 19, 2016.
- The first season of Freedom Fighters: The Ray; aired December 8, 2017.