Osnat Hila Mark (Hebrew: אוסנת הילה מארק; born 22 September 1967) is an Israeli lawyer and politician.

[1] She won 34th place on the party's list for the 2015 elections,[2] and although Likud won only 30 seats,[3] Osnat became a Knesset member in 2018 as a replacement for Jackie Levy, who left the legislature after being elected mayor of Beit She'an in the 2018 municipal elections.

[4] She was placed 35th on the party's list for the April 2019 elections, and was re-elected as Likud won 35 seats.

She failed to regain her seat in the March 2020 elections, but re-entered the Knesset on 5 July 2020 as a replacement for Gilad Erdan after he was appointed as the Permanent Representative of Israel to the United Nations and Israeli ambassador to the United States.

Mark is married with three children and lives in the Israeli settlement of Ma'ale Adumim.