Aivi Belinda Kerstin Luik (born 18 March 1985) is an Australian soccer player who plays as a midfielder for Swedish club BK Häcken FF.

[2] She previously played for Brisbane Roar and Perth Glory in the W-League, Brøndby IF in Denmark's Elitedivisionen, Fylkir in Iceland's Úrvalsdeild kvenna, Notts County F.C.

in England's FA WSL, Vålerenga in Norway and for Spanish Primera División club Sevilla FC.

Luik was born in Perth to Estonian and Swedish parents and moved to the Gold Coast at a young age where she played junior football for Palm Beach and attended Elanora State High School.

[4] During her senior year, she captained the squad and scored the game-winning penalty kick to win the Western Athletic Conference (WAC) and lift the NCAA College Cup for the first time.

[11] After re-signing with Melbourne City for the 2016–17 season, Luik started in the midfield in 13 of the 14 matches she played, including the semifinal and Grand Final.

[14][15] After defeating Brisbane Roar in penalty kicks,[16] Melbourne City advanced and won the 2017 W-League Grand Final for the second consecutive year.

[21] Five months later, Luik returned from retirement and was named in Australia's 2022 AFC Women's Asian Cup squad.