In order to recover from injuries and stress, Mustafina did not compete at the 2015 Russian Championships or the 2015 European Championships. She returned to competition at the 2015 European Games in Baku in June with Viktoria Komova and Seda Tutkhalyan. They won the team final, and in the individual all-around final, Mustafina again placed first with a score of 58.566. She also received a gold medal on bars (15.400) and silver on floor (14.200, her best score of the competition on that apparatus).