Carley Monika Ernst (née Mijović; born 1 August 1994) is an Australian professional basketball player.

Ernst began her professional career in 2009 when she joined the Australian Institute of Sport (AIS) for the 2009–10 WNBL season.

[7] She helped lead the Lynx to a second place regular season finish with a 16–8 win–loss record, and went on to score 17 points in the team's semi-final win over the first-seeded Townsville Fire.

She remained in Perth during the 2016 off-season and joined the Kalamunda Eastern Suns of the State Basketball League.

[17] In 2024, Ernst helped the Waverley Falcons win the NBL1 South championship while earning grand final MVP honours.

[20][21] Ernst has been a member of both the Australian Under-17 and Under-19 national women's teams, winning bronze in 2013 with the Gems at the FIBA Under-19 World Championship.