Tessa Simpson (born October 27, 1986) is an American former mixed martial artist who competed in Atomweight division of the Invicta Fighting Championships (Invicta).
Simpson was born in Guam. Growing up as a teenager, she was actively competing in various sports. She started training in jiu-jitsu after watching Pride Fighting Championships and Pancrase events. She took up Muay Thai later and transitioned to mixed martial arts as few kickboxing competition events could be found in Texas.
Simpson started her amateur career in 2009. After amassing 2âÂÂ1 record in 2009, she had a long hiatus from 2010 to 2016 where she had only one fight in 2013. She was signed by Invicta Fighting Championships (Invicta) after coming nearly a three-year layoff when she won over Satomi Takano at Pacific Xtreme Combat 52 with amassing a record of 4âÂÂ1.
Simpson made her promotional debut on July 29, 2016, at against Simona Soukupova. She won the fight unanimous decision.
Her next fight came ten months later on May 20, 2017, at against Herica Tiburcio. She lost the fight via split decision.
On December 8, 2017, Simpson faced Amber Brown at . She won the fight via a submission armbar on round one.
|- | Loss | align=center| 5âÂÂ3 | Amber Brown | Submission (armbar) | | | align=center| 1 | align=center| 0:50 | Kansas City, Missouri, United States | |- | Loss | align=center| 5âÂÂ2 | Herica Tiburcio | Decision (split) | | | align=center| 3 | align=center| 5:00 | Kansas City, Missouri, United States | |- | Win | align=center| 5âÂÂ1 | Simona Soukupova | Decision (unanimous) | | | align=center| 3 | align=center| 5:00 | Kansas City, Missouri, United States |- | Win | align=center| 4âÂÂ1 | Satomi Takano | Submission (mounted triangle keylock) | Pacific Xtreme Combat 52 | | align=center| 3 | align=center|2:01 | Mangilao, Guam, Guam |- | Win | align=center| 3âÂÂ1 | Paulina Granados | Decision (unanimous) | Legacy Fighting Championship 23 | | align=center| 3 | align=center| 5:00 | San Antonio, Texas, United States |- | Loss | align=center| 2âÂÂ1 | Anita Rodriguez | Submission (scarf hold armlock) | Bully Bash and Brawl 2 | | align=center| 2 | align=center|0:56 | Austin, Texas, United States |- | Win | align=center| 2âÂÂ0 | Hayley Cypert | TKO (punches) | Adrenaline: Feel The Rush | | align=center| 1 | align=center|1:56 | San Angelo, Texas, United States |- | Win | align=center| 1âÂÂ0 | Angelita Davis | Submission (triangle choke) | Shark Fights 3 | | align=center| 1 | align=center|0:48 | Amarillo, Texas, United States |-