1. deild kvenna, also known as Lengjudeild kvenna (English: The Lengja League) for sponsorship reasons, is the second-tier women's football league in Iceland. The league was founded in 1982. As of 1 October 2022, FH are the league's champions. The league features 10 teams; the top two finishers qualify for promotion to the Besta deild kvenna, while the bottom two are relegated to 2. deild kvenna. Two teams are relegated from the bottom group of the top-tier Besta deild kvenna to this league, and the top two teams from 2. deild kvenna are promoted into this league.