Aleksandr Alekseyev (Алексеев, Александр) or Alexander Alexeev may refer to:
Aleksandr Alekseyev (boxer) (born 1981), Russian cruiserweight boxer Aleksandr Alekseyev (footballer), (born 1989), Russian footballer Alexander Alexeyev (diplomat) (1913–1989), Soviet intelligence agent Alexander Alexeyev (ice hockey) (born 1999), Russian ice hockey player Aleksandr Alekseyev (ice hockey, born 1968), Belarusian ice hockey player Alexandre Alexeieff (1901–1982), Russian-born French illustrator Alexander Alexeev (conductor), (1938–2020), Russian conductor