Yelena Jemayeva (Russian: Елена Жемаева, also spelled Elena, born 30 March 1971) is a Russian-born Azerbaijani former sabre fencer.

She competed in the individual sabre event at the 2004 Summer Olympics but was upset in the quarterfinals by eventual gold medalist Mariel Zagunis of the USA.

[1] Jemayeva lives in Moscow.

She is married to the Olympic and world team champion fencer Ilgar Mammadov, Yelena and Ilgar have two daughters: Milena and Ayla.

This biographical article related to fencing in Azerbaijan is a stub.