Olga Rubin (Hebrew: אולגה רובין, Russian: Ольга Рубин, born August 18, 1989) is a Russian-born Israeli female mixed martial artist who competes in the Bantamweight and Featherweight divisions.

Rubin would win her next two bouts on the regional Israeli scene, by first-round TKO against Carmel Ben Shoshan at Desert Combat Challenge 9 and Tetyana Voznuk via unanimous decision at Knockout MMA World Tour 1.

[11] Rubin was scheduled to face Sinead Kavanagh at Bellator 217 on February 2, 2019, who however pulled out of the bout due to injury.

[19] In her first appearance post release, Rubin moved down to Bantamweight and faced Priscila de Souza on November 6, 2021, at Oktagon Prime 4.

[24] Rubin faced Claire Guthrie at Invicta FC 53 on May 3, 2023, winning the fight by buggy choke in the second round.

[27] In her next fight, Rubin would face Mayra Cantuária in the main event of Invicta FC 60 on February 7, 2025.