Katharina Lehner (born April 9, 1990) is a German mixed martial artist who competes in the women's Bantamweight division. She has also previously fought in Bellator MMA and Invicta FC. She fought Sarah Kaufman for the Invicta Bantamweight title in the main event of Invicta FC 29.
Lehner made her professional debut against Anne Merkt at We Love MMA 9 on September 27, 2014. She won the fight by split decision, and amassed a 5âÂÂ0 record before signing with Invicta FC. Lehner made her debut against Alexa Conners at on August 31, 2017. She won the fight by a first-round technical knockout.
After defeating Gemma Pike by unanimous decision at Hype FC 7 on December 16, 2017, Lehner was booked to face Sarah Kaufman for the vacant Invicta FC Bantamweight Championship at on May 4, 2018. She lost the fight by a third-round submission.
Lehner faced Lisa Spangler at on June 7, 2019. She lost the fight by unanimous decision.
Lehner faced Sinead Kavanagh at Bellator Milan 3 on October 3, 2020, following a 16-month absence from the sport. She lost the fight by unanimous decision.
Lehner was expected to face Talita Bernardo at on July 20, 2022. Lehner withdrew for an undisclosed reason and was replaced by Yana Gadelha.
Lehner was rebooked against Talita Bernardo on November 16, 2022, at Invicta FC 50, getting submitted via a kimura in the second round.
On December 2, 2023, it was announced that Lehner signed a multi-fight deal with Bare Knuckle Fighting Championship.
Lehner made her BKFC debut against Jessica Borga on April 12, 2024, at BKFC Fight Night 13. She lost the bout by knockout in the first round.
Lehner faced on June 28, 2024, in her first slap-fighting bout at Power Slap 8 and lost as a result of a disqualification due to two clubbing fouls.
|- |Loss |align=center|9âÂÂ9 |Lucie Pudilová |Decision (unanimous) |Oktagon 83 | |align=center|3 |align=center|5:00 |Stuttgart, Germany | |- |Loss |align=center|9âÂÂ8 |Alina Dalaslan |Decision (unanimous) |Oktagon 78 | |align=center|3 |align=center|5:00 |Cologne, Germany | |- |Loss |align=center|9âÂÂ7 |Maya Stewart |Submission (rear-naked choke) |Fury FC 109 | |align=center|3 |align=center|3:37 |Houston, Texas, United States | |- |Loss |align=center|9âÂÂ6 |Olga Rubin |Submission (rear-naked choke) | | |align=center|2 |align=center|1:14 |Kansas City, Missouri, United States | |- |Win |align=center|9âÂÂ5 |Shanna Young |Decision (split) | | |align=center|3 |align=center|5:00 |Atlanta, Georgia, United States | |- |Loss |align=center|8âÂÂ5 |Melissa Croden |TKO (punches) | | |align=center|3 |align=center|3:20 |Dallas, Texas, United States | |- |Win |align=center| 8âÂÂ4 |Abril Anguiano |Decision (unanimous) |Peak Fighting 27 | |align=center|3 |align=center|5:00 |Frisco, Texas, United States | |- |Loss |align=center| 7âÂÂ4 |Talita Bernardo |Submission (kimura) |Invicta FC 50 | |align=center|2 |align=center|4:26 |Denver, Colorado, United States | |- | Loss | align=center| 7âÂÂ3 | Sinead Kavanagh | Decision (unanimous) | Bellator Milan 3 | | align=center| 3 | align=center| 5:00 | Milan, Italy | |- | Loss | align=center| 7âÂÂ2 | Lisa Spangler | Decision (unanimous) | | | align=center| 3 | align=center| 5:00 | Kansas City, Kansas, United States | |- | Loss | align=center| 7âÂÂ1 | Sarah Kaufman | Submission (rear-naked choke) | | | align=center| 3 | align=center| 4:30 | Kansas City, Missouri, United States | |- | Win | align=center| 7âÂÂ0 | Gemma Pike | Decision (unanimous) | Hype FC 7 | | align=center| 3 | align=center| 5:00 | Bremen, Germany | |- | Win | align=center| 6âÂÂ0 | Alexa Conners | TKO (punches) | | | align=center| 1 | align=center| 4:21 | Lemoore, California, United States | |- | Win | align=center| 5âÂÂ0 | Judith Ruis | Decision (unanimous) | Respect FC 18 | | align=center| 3 | align=center| 5:00 | Cologne, Germany | |- | Win | align=center| 4âÂÂ0 | Alexandra Buch | Decision (unanimous) | GMC 7 | | align=center| 3 | align=center| 5:00 | Castrop-Rauxel, Germany | |- | Win | align=center| 3âÂÂ0 | Camilla Hinze | Decision (unanimous) | We Love MMA 15 | | align=center| 3 | align=center| 5:00 | Berlin, Germany | |- | Win | align=center| 2âÂÂ0 | Barbora Polakova | Decision (unanimous) | Young Blood Night Vol. 3 | | align=center| 3 | align=center| 5:00 | Fürth, Germany | |- | Win | align=center| 1âÂÂ0 | Anne Merkt | Decision (split) | We Love MMA 9 | | align=center| 2 | align=center| 5:00 | Hamburg, Germany | |-
|- |Loss |align=center| 0âÂÂ1 |Jessica Borga |KO (punch) | | |align=center|1 |align=center|0:53 |Clearwater, Florida, United States | |-