Mariam Selim (born 24 October 2002 in Alexandria, Egypt) is an Egyptian former rhythmic gymnast.

[2] Selim competed as a junior in the 2016 African Rhythmic Gymnastics Championships in Walvis Bay, where she won five gold medals.

[3] She competed as a senior at the 2018 African Rhythmic Gymnastics Championships in Cairo, and she won gold medals in the team, hoop, ball, and ribbon, and a silver medal in the individual all-around.

[2] She competed at the 2019 FIG World Challenge Cup in Minsk where she finished 50th in the individual all-around.

[2] At the 2020 African Rhythmic Gymnastics Championships in Sharm el-Sheikh, she won a gold medal in the team event and silver medals in the individual all-around, ribbon, hoop, and clubs.