Aleksandra Antonova or Alexandra Antonova (Russian: Александра Антонова) may refer to the following notable people:
Aleksandra Antonova (hurdler) (born 1980), Russian hurdle runner Aleksandra Antonova (water polo) (born 1991), Russian water polo player Aleksandra Antonova (writer) (1932–2014), Kildin Sami and Russian teacher, writer, poet and translator