The women's football tournament at the 2016 Summer Olympics in Rio de Janeiro was held from 3 to 19 August 2016. The women's tournament was a full international tournament with no restrictions on age. The twelve national teams involved in the tournament were required to register a squad of 18 players, including two goalkeepers. Additionally, teams could name a maximum of four alternate players, numbered from 19 to 22. The alternate list could contain at most three outfielders, as at least one slot was reserved for a goalkeeper. In the event of serious injury during the tournament, an injured player could be replaced by one of the players in the alternate list. Only players in these squads were eligible to take part in the tournament.