Mariya Omelianovych (née Danilyuk, born 21 September 1960) is a Ukrainian rower who represented the Soviet Union.

She had qualified for the 1984 Summer Olympics but did not go due to the boycott led by the Soviet Union.

Instead, she competed at the Friendship Games, also dubbed the "alternative Olympics", and won first place in single scull.

[citation needed] At the 1985 World Rowing Championships in Hazewinkel, Belgium, she came sixth in the single scull event.

[1] She competed at the 1988 Summer Olympics in Seoul with the women's double sculls where they came fourth.