List of National Women's Soccer League seasons

[1] The champion is determined by the NWSL Championship and the playoffs, a postseason knockout tournament for top teams in the regular season similar to those for other North American sports leagues.

The team with the best record during the regular season, as determined by the number of points or another tiebreaker, is awarded the NWSL Shield.

[5] The NWSL was founded in November 2012 under the administration of the United States Soccer Federation with eight teams who would begin play the following year.

[9] Two of the league's ten teams ceased operations prior to the 2018 season, while another had relocated a year earlier.

[23] The single-season scoring record of 20 goals was set by Malawian forward Temwa Chawinga of the Kansas City Current during the 2024 season; she also won the Most Valuable Player Award.