Liu Mengyang () is a Chinese kickboxer and mixed martial artist.
As of January 2026 he was the #10 ranked -71 kg kickboxer in the world according to Beyond Kickboxing.
On December 31, 2022, Liu faced Xu Jiajie on Wu Lin Feng year-end event. He lost the fight by extension round decision.
On October 21, 2023, Liu faced Meng Lingkuo at TOP Fighting Championship. He won the fight by third-round technical knockout after a body kick.
On April 6, 2024, Liu travelled to Budapest, Hungary to face Dominik Bereczki as part of the event. He lost the fight by unanimous decision.
On May 2 and 3, 2025, Liu took part in the two day 2025 Yu Ao Ti Yu Fighting Championship. On day one he defeated Masoud Minaei by tehcnical knockout in the second round with calf kicks. On day two he stopped Narek Aboyan in the second round.
Following a decision victory over Sudsakorn Sor Klinmee Liu was called for a short notice replacement to face Masaaki Noiri at ONE Friday Fights 92 on December 20, 2024. He won the fight via unanimous decision after scoring a knockdown 20 seconds into the bout.
Liu faced Mohammad Siasarani at ONE Friday Fights 105 on April 18, 2025. He lost the fight by split decision.
Liu was scheduled to face Tawanchai P.K. Saenchaimuaythaigym at ONE Friday Fights 126 on September 26, 2025. Tawanchai was later replaced by Shadow Singha Mawynn. Liu won the fight by unanimous decision after scoring a knockdown.
On December 19, 2025, Liu faced Tawanchai P.K. Saenchaimuaythaigym at ONE Friday Fights 137. He won the fight by first-round technical knockout in 52 seconds after breaking Tawanchai's leg with a low kick.
Liu made his professional mixed martial arts debut on June 29, 2024, against Weihao Cai at JCK Fight Night 87. He won the fight by technical knockout in the first round.
Awards
|- style="background:#cfc;" | 2025-12-19 || Win ||align=left| Tawanchai P.K. Saenchaimuaythaigym || ONE Friday Fights 137, Lumpinee Stadium || Bangkok, Thailand || TKO (Broken Leg/Low kick)|| 1 || 0:52
|- style="background:#cfc;" | 2025-09-26 || Win||align=left| Shadow Singha Mawynn || ONE Friday Fights 126, Lumpinee Stadium || Bangkok, Thailand ||Decision (Unanimous) || 3 || 3:00
|- style="background:#fbb;" | 2025-04-18 || Loss || align=left| Mohammad Siasarani || ONE Friday Fights 105, Lumpinee Stadium || Bangkok, Thailand || Decision (Split) || 3 || 3:00
|- style="background:#cfc;" | 2024-12-20 || Win ||align=left| Masaaki Noiri || ONE Friday Fights 92, Lumpinee Stadium || Bangkok, Thailand || Decision (Unanimous)|| 3 ||3:00
|- style="background:#cfc;" | 2024-10-25 || Win || align="left" | Sudsakorn Sor Klinmee || Zhong Long Fight || China|| Decision (Unanimous) || 3 || 3:00
|- style="background:#cfc;" | 2024-10-03 || Win || align=left| Abolfazl Alipourandi|| Wu Lin Da Hui || China || TKO (Left hook) || 1 || 2:18
|- style="background:#cfc;" | 2024-05-03 || Win || align=left| Narek Aboyan || Yu Ao Ti Yu Fighting Championship - Day 2|| Leshan, China || TKO (Right cross) || 2 || 1:40 |- ! style=background:white colspan=9 |
|- style="background:#cfc;" | 2024-05-02 || Win || align=left| Masoud Minaei || Yu Ao Ti Yu Fighting Championship - Day 1|| Leshan, China || TKO (calf kicks) || 2 || 2:45
|- style="background:#fbb;" | 2024-04-06 || Loss || align="left" | Dominik Bereczki || || Budapest, Hungary|| Decision || 3 || 3:00
|- style="background:#cfc;" | 2023-10-21 || Win || align="left" | Meng Lingkuo || TOP Fighting Championship || Hefei, China|| KO (body kick)|| 3 ||
|- style="background:#cfc;" | 2023-09-11 || Win || align="left" | Xiong Junhao || TOP Fighting Championship || China|| TKO (Body kicks)|| 3 || 2:04
|- style="background:#cfc;" | 2023-06-30|| Win || align="left" | Seksan || Zhenhua Hero World Kung Fu King Championship || Hefei, China|| Decision || 3 || 3:00
|- style="background:#cfc;" | 2023-05-27 || Win || align="left" | Tan Xiaofeng || Wu Lin Feng 538 || Tangshan, China|| Decision || 3 || 3:00
|- style="background:#cfc;" | 2023-05-01 || Win || align="left" | Wang Qi || Kunlun Fight || China|| Decision (Unanimous)|| 3 || 3:00
|- style="background:#fbb;" | 2022-12-31 || Loss|| align="left" | Xu Jiajie || Wu Lin Feng || Foshan, China|| Ext.R Decision || 4 || 3:00
|- style="background:#fbb;" | 2021-12-31 || Loss|| align="left" | Xu Jiajie || Kunlun Fight || China|| Decision (Unanimous)|| 3 || 3:00
|- | colspan=9 | Legend:
|- |Win |align=center|2-0 |Maimaitikari Apaer |Submission (ninja choke) |JCK Fight Night 94 | |align=center|1 |align=center|3:00 |Lüliang, China | |- |Win |align=center|1âÂÂ0 |Weihao Cai |TKO (punches) |JCK Fight Night 87 | |align=center|1 |align=center|4:17 |Lüliang, China | |-