Amber Brown (born December 14, 1988) is an American mixed martial arts (MMA) fighter in the Atomweight weight class.
Fight Matrix has almost continually ranked Brown as a top fifteen women's atomweight, having ranked her as high as #5 in October 2015.
Brown made her professional debut against Ashley Aguirre at KOTC Final Countdown. She won the fight by a unanimous decision. Brown won her second fight with KOTC as well, beating Abby Higginbotham by a first-round TKO at KOTC Curtain Call.
Brown was scheduled to fight Emi Fujino at Pancrase 247, as a late replacement for Monica Lovato, who had to withdraw following a car accident. Fujino won the fight by a second-round neck crank submission.
Brown was scheduled to fight Kikuyo Ishikawa at Pancrase 250. Brown won the fight by a third-round armbar submission.
For her Invicta debut, Brown was scheduled to fight Liz McCarthy at . She won the fight by split decision.
Brown was scheduled to fight Catherine Costigan at . She won the fight by a first round submission.
Brown was scheduled to fight Shino VanHoose at . Brown won the fight by a first-round guillotine choke.
Her three fight winning streak earned Brown the chance to challenge the reigning Invicta Atomweight champion Ayaka Hamasaki, at . Hamasaki won the fight by a third-round armbar submission.
Brown was next scheduled to fight Ashley Yoder at . Brown lost the fight by a second round submission. Brown was scheduled to fight Ashley Cummins at . Cummins won the fight by unanimous decision, extending Brown's losing streak to three fights.
Brown snapped her losing streak at , submitting Tessa Simpson with an armbar, 50 seconds into the fight.
Brown was scheduled to fight Alesha Zappitella at . Zappitella won the fight by unanimous decision.
Brown participated in the Invicta Phoenix Series 1 strawweight tournament. She was scheduled to face Sharon Jacobson in the quarterfinals, as a late replacement for Mizuki Inoue, who was pulled from the card due to weigh-cut complications. Jacobson won the fight by unanimous decision.
Brown was scheduled to fight a rematch with Sharon Jacobson at Invicta FC: Phoenix Series 3. Brown later withdrew from the bout for undisclosed reasons.
After three years away from MMA, Brown was scheduled to make her return and debut for LFA against Pauline Macias in July 2022. Brown withdrew from the fight after her daughter became ill.
Brown was scheduled to fight veteran Celine Haga on March 11, 2023, for Fight World MMA. However the day before the event, Haga withdrew due to illness and the bout was cancelled.
Brown made her debut in LFA against Marnic Mann at on April 21, 2023, with Brown losing the fight via unanimous decision.
|- | Loss | align=center| 7âÂÂ7 | Marnic Mann | Decision (unanimous) | | | align=center| 3 | align=center| 5:00 | Prior Lake, Minnesota, United States | |- | Loss | align=center| 7âÂÂ6 | Sharon Jacobson | Decision (unanimous) | Invicta Phoenix Series 1 | | align=center| 1 | align=center| 5:00 | Kansas City, Kansas | <small>Invicta FC Strawweight Tournament Quarterfinal.</small> |- | Loss | align=center| 7âÂÂ5 | Alesha Zappitella | Decision (unanimous) | | | align=center| 3 | align=center| 5:00 | Kansas City, Missouri, United States | |- | Win | align=center| 7âÂÂ4 | Tessa Simpson | Submission (armbar) | | | align=center| 1 | align=center| 0:50 | Kansas City, Missouri, United States | |- | Loss | align=center| 6âÂÂ4 | Ashley Cummins | Decision (unanimous) | | | align=center| 3 | align=center| 5:00 | Kansas City, Missouri, United States | |- | Loss | align=center| 6âÂÂ3 | Ashley Yoder | Submission (armbar) | | | align=center| 2 | align=center| 2:31 | Kansas City, Missouri, United States | |- | Loss | align=center| 6âÂÂ2 | Ayaka Hamasaki | Submission (armbar) | | | align=center| 3 | align=center| 2:52 | Las Vegas, Nevada, United States | <small>For the Invicta FC Atomweight Championship.</small> |- | Win | align=center| 6âÂÂ1 | Shino VanHoose | Submission (guillotine choke) | | | align=center| 1 | align=center| 2:36 | Costa Mesa, California, United States | |- | Win | align=center| 5âÂÂ1 | Catherine Costigan | Submission (rear-naked choke) | | | align=center| 1 | align=center| 3:34 | Las Vegas, Nevada, United States | |- | Win | align=center| 4âÂÂ1 | Liz McCarthy | Decision (split) | | | align=center| 3 | align=center| 5:00 | Davenport, Iowa, United States | |- | Win | align=center| 3âÂÂ1 | Kikuyo Ishikawa | Submission (armbar) | Pancrase 250 | | align=center| 3 | align=center| 3:27 | Tokyo, Japan | |- | Loss | align=center| 2âÂÂ1 | Emi Fujino | Submission (neck crank) | Pancrase 247 | | align=center| 2 | align=center| 4:18 | Tokyo, Japan | |- | Win | align=center| 2âÂÂ0 | Abby Higginbotham | TKO (punches) | KOTC Curtain Call | | align=center| 1 | align=center| 2:24 | Norman, Oklahoma, United States | |- | Win | align=center| 1âÂÂ0 | Ashley Aguirre | Decision (unanimous) | KOTC Final Countdown | | align=center| 3 | align=center| 5:00 | Santa Fe, New Mexico, United States |