Maryna Moroz (born September 9, 1991) is a Ukrainian mixed martial artist signed with the Ultimate Fighting Championship, where she competes in the strawweight division. Maryna Moroz is also a boxing coach for the Ukrainian Olympic women's boxing team Moroz started practicing boxing at a young age. She began training in mixed martial arts in 2013 as way there was lack of opportunity of professional women's boxing in Ukraine. She made her professional debut in 2013 and amassed a record of 5-0 before joining Xtreme Fighting Championships. After a 5–0 stint on the regional circuit, Moroz signed with Florida based promotion Xtreme Fighting Championships. Moroz faced Karine Silva in her debut at XFC International 7 on November 1, 2014. She won via armbar. Moroz made her debut in the Ultimate Fighting Championship (UFC) against Joanne Calderwood on April 11, 2015 at UFC Fight Night 64. Moroz won the fight via armbar. Moroz next faced Valérie Létourneau at UFC Fight Night 74. She lost the back and forth fight via unanimous decision. Moroz defeated Cristina Stanciu at UFC Fight Night: Rothwell vs. dos Santos on April 10, 2016. Moroz defeated Danielle Taylor at UFC Fight Night: Rodríguez vs. Caceres via split decision on August 6, 2016. On June 25, 2017, Moroz faced Carla Esparza at UFC Fight Night: Chiesa vs. Lee. She lost the fight via unanimous decision. Moroz was scheduled to face Jamie Moyle on January 20, 2018 at UFC 220. However, Moyle pulled out of the fight during the week leading up to the event citing an undisclosed injury and the bout was cancelled. Moroz faced former Invicta FC champion Angela Hill on February 24, 2018 for UFC on Fox: Emmett vs. Stephens. She lost the fight by unanimous decision. Moroz was expected to face Ariane Lipski on November 17, 2018 at UFC Fight Night 140. However, on October 29, 2018 it was reported that Moroz pulled out from the bout due to injury. Moroz faced promotional newcomer Sabina Mazo on March 30, 2019 at UFC on ESPN 2. She won the fight via unanimous decision. Moroz was scheduled to face Poliana Botelho on August 17, 2019 at UFC 241. However, it was reported on August 1, 2019 that Moroz was forced to pull from the event, citing injury. Moroz faced Mayra Bueno Silva on March 14, 2020 at UFC Fight Night 170. She won the fight via unanimous decision. This fight earned her the Fight of the Night award.