Heather Clark (born September 19, 1980) is an American former mixed martial artist who competed in the Strawweight division of the Ultimate Fighting Championship (UFC), and Invicta Fighting Championships (Invicta).
Clark made her professional MMA debut in April 2010. During the first two and a half years of her career, she amassed a record of five wins and three losses.
Clark signed with Bellator MMA in 2013 and faced Felice Herrig at Bellator 94. She lost the back-and-forth fight via split decision. Clark and Herrig would later have a rematch on their season of The Ultimate Fighter.
Heather was among the final eight contestants that tried out for the TUF house, to join the 11 Invicta FC strawweights that President Dana White had acquired.
Heather was Team Melendez' sixth pick and ranked 11. She was paired to take on long-time rival #6 ranked Felice Herrig for her first fight.
In episode 5 Clark and Herrig fought with Herrig walking away with the unanimous decision. After the fight, Clark said she did some "soul-searching" and apologized to Herrig, saying she wasn't going to judge her anymore, squashing their feud.
Clark made her UFC debut at where she defeated teammate and rival Bec Rawlings by unanimous decision. Heather faced Karolina Kowalkiewicz on May 8, 2016 at in Rotterdam, Netherlands. She lost the fight by unanimous decision.
Her next fight came on November 5, 2016 at against Alexa Grasso She lost the fight by unanimous decision.
After almost two years hiatus, Clark joined Invicta Fighting Championships (Invicta) and made her promotional debut on July 21, 2018 at against Kinbery Novaes. She won the fight via unanimous decision.
Clark was scheduled to face Mizuki Inoue on November 16, 2018 at but pulled out before the event.
|- |Win |align=center|8âÂÂ6 |Kinberly Novaes |Decision (unanimous) | | |align=center|3 |align=center|5:00 |Kansas City, Missouri, United States | |- |Loss |align=center|7âÂÂ6 |Alexa Grasso |Decision (unanimous) | | |align=center|3 |align=center|5:00 |Mexico City, Mexico | |- |Loss |align=center|7âÂÂ5 |Karolina Kowalkiewicz |Decision (unanimous) | | |align=center|3 |align=center|5:00 |Rotterdam, Netherlands | |- | Win |align=center| 7âÂÂ4 | Bec Rawlings | Decision (unanimous) | | |align=center|3 |align=center|5:00 |Las Vegas, Nevada, United States | |- | Win |align=center| 6âÂÂ4 | Hannah Cifers | Decision (unanimous) | | |align=center|3 |align=center|5:00 | Nashville, Tennessee, United States | |- | Loss |align=center| 5âÂÂ4 | Felice Herrig | Decision (split) | | |align=center|3 |align=center|5:00 | Tampa, Florida, United States | |- | Loss |align=center| 5âÂÂ3 | Stephanie Eggink | Decision (unanimous) | | |align=center|3 |align=center|5:00 |Nashville, Tennessee, United States | |- | Win |align=center| 5âÂÂ2 | Avery Vilche | Submission (rear-naked choke) | | |align=center|1 |align=center|1:51 |Nashville, Tennessee, United States | |- | Loss |align=center| 4âÂÂ2 | Marianna Kheyfets | TKO (doctor stoppage) | | |align=center|1 |align=center|5:00 |Knoxville, Tennessee, United States | |- | Win |align=center| 4âÂÂ1 | Sarah Alpar | Submission (rear-naked choke) |FCF - Freestyle Cage Fighting 49 | |align=center|3 |align=center|1:28 |Shawnee, Oklahoma, United States | |- | Win |align=center| 3âÂÂ1 | Jennifer Scott | TKO (elbows) |ECSC - Friday Night Fights 3 | |align=center|2 |align=center|2:19 |Clovis, New Mexico, United States | |- | Win |align=center| 2âÂÂ1 | April Coutino | KO (punch) |ECSC - Friday Night Fights 1 | |align=center|1 |align=center|0:10 |Clovis, New Mexico, United States | |- | Win |align=center| 1âÂÂ1 | Kyane Hampton | Submission (armbar) |ECSC - Evolution 1 | |align=center|1 |align=center|1:54 |Clovis, New Mexico, United States | |- | Loss |align=center| 0âÂÂ1 | Karina Hallinan | Decision (unanimous) |VFC 31 - Victory Fighting Championship | |align=center|3 |align=center|5:00 |Council Bluffs, Iowa, United States | |-
|- | Loss |align=center| 0âÂÂ1 | Felice Herrig | Decision (unanimous) | |October 22, 2014 (airdate) |align=center|3 |align=center|5:00 |Las Vegas, Nevada, United States | |-