Arsenal Women Football Club, commonly referred to as just Arsenal, is an English professional women's football club based in Islington, London, England. The club plays in the Women's Super League, the top tier of English women's football. Arsenal were founded in 1987 following an initiative by Vic Akers, who became the club's first, longest-serving, and most successful manager. He guided Arsenal to continued success until his departure in 2009, winning the most top-flight matches in English football history. The club have sustained this record, and have won the most doubles and trebles in English football history. Arsenal have also completed a record seven unbeaten league seasons, setting a number of English records for longest top-flight unbeaten run, for goals scored, and points won.

Arsenal are statistically the most successful club in English women's football and among the most successful women's clubs in the world, holding the records for most titles won in each domestic competition they have played. The club have won 15 league titles, 14 Women's FA Cups, 7 Women's League Cups, 10 Women's National League Cups, 5 Women's FA Community Shields. They are the only English club to win the UEFA Women's Champions League, having won in 2007 and 2025. They are also the only English club to win the continental treble while going undefeated in all competitions played that same season. In the 2006–07 season, the club became the first in the history of women's football to achieve the continental European sextuple.

Arsenal play their home games primarily at the Emirates Stadium, and others at Meadow Park in Borehamwood. In the 2023–24 season, Arsenal broke the WSL record attendance three times in total. Current plans for the club are for all matches to be played at the Emirates Stadium, home of the men's team, beginning with all league matches, and then qualifying rounds of the Champions League, with domestic cup games to follow.