List of WNBA seasons
Wikimedia list article

The Women's National Basketball Association (WNBA) is a professional women's basketball league in the United States with 15 teams as of 2026. The league was founded in 1996 by the men's National Basketball Association (NBA) as a wholly owned subsidiary and began play in the 1997 season with eight teams. WNBA shares the same court dimensions, hoop height, and shot clock length as the NBA, but has had shorter quarters of ten minutes each since 2006 and uses a smaller ball to match with international FIBA standards. Full NBA ownership of the league ended in 2002 and new independent ownership groups began investing in franchises; the WNBA has seven teams with independent ownership and eight that are under the same ownership as an NBA team and share the same home arena.
The league's 15 teams are organized into the Eastern and Western conferences. The number of WNBA teams has varied since the league's original eight in 1997 due to expansions and later contractions; the first expansion teams were added in 1998 and were followed by two more rounds of additions that brought the total to 16 teams in 2000. Following the change in NBA ownership in 2002, the WNBA lost two teams. The league lost two more teams by 2006 but expanded to remain at 13 teams. The number of teams has remained at 12 between the folding of the Houston Comets in 2008 and the debut of the Golden State Valkyries in 2025. Two more expansion teams began play in 2026, including the league's first in Canada, and is set to be followed by three more expansions by 2030 to bring the league to 18 teams.
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