Aleksandra Romanovna Pospelova (Russian: Александра Романовна Поспелова; born 22 April 1998) is a Russian professional tennis player. Pospelova has won two singles and ten doubles titles on the ITF Circuit. She reached her career-high singles ranking of world No. 537 on 6 February 2017, and her career-high doubles ranking of No. 310 on 23 October 2017. In 2015, Pospelova won the girls' doubles title at the US Open, partnering Viktória Kužmová; together they defeated Anna Kalinskaya and Anastasia Potapova in the final.