Alja Ponikvar (born 17 February 2009) is a Slovenian rhythmic gymnast.

As the youngest member of the team (still a pre-junior) she competed at the 2022 Junior European Championships and placed 17th in Team competition (out of 33 countries) together with teammates Ela Polak, Asja Pučnik and Nika Zajc.

[3] At 1st Balkan Championships in November 2023, she won bronze medal in Clubs and Ball final, as well as in Team competition.

In 2024, she competed at 1st European Cup, held in Baku, Azerbaijan and qualified to two apparatus finals (8th in Hoop and 7th in Ball).

[4] Alja was selected to represent Slovenia together with Urša Kračman at the 2024 European Championships in Budapest, Hungary.