Joseph Lasiri (born July 19, 1991) is an Italian-Moroccan Muay Thai fighter. He is currently signed to ONE Championship, where he is the former ONE Strawweight Muay Thai World Champion.

Lasiri is a WBC Muay Thai World Bantamweight Champion and a 5-times World Muay Thai Organization Pro-Am Champion.

• International Federation of Muaythai Associations
  • 2012 IFMA European -54 kg / 118 lb C bronze
• World Muaythai Federation
  • 2012 WMF European Champion^[1] 51 kg /gold Bulgaria
  • 2013 WMF World pro-am -51 kg Champion^[2]
• World Muaythai Organization
  • 2014 WMO World Champion/ pro- am/ 54 kg
  • 2015 WMO World Champion/pro-am/54 kg
  • 2016 WMO World Champion/pro-am/54 kg
  • 2017 WMO World Champion/pro-am/54 kg

• ONE Championship
  • ONE Strawweight Muay Thai World Championship (One time, current)
  • Performance of the Night (One time) vs. Prajanchai P.K.Saenchai^[3]
• World Fighters Council
  • 2012 WFC European 56 kg champion
  • 2013 WFC European -56 kg Champion
• World Boxing Council Muaythai
  • 2017 WBC Muay Thai World Bantamweight -53.5 kg / 118 lb Champion^[4]

Professional Muay Thai Record

43 Wins (20 (T)KO's), 14 Losses, 0 Draws
Date	Result	Opponent	Event	Location	Method	Round	Time
2023-12-22	Loss	Prajanchai P.K.Saenchaimuaythaigym	ONE Friday Fights 46	Bangkok, Thailand	KO (elbow)	1	1:28
Unifying the ONE Strawweight Muay Thai World Championship.
2022-11-19	Loss	Rodtang Jitmuangnon	ONE on Prime Video 4	Kallang, Singapore	Decision (unanimous)	5	3:00
For the ONE Flyweight Muay Thai World Championship.
2022-05-20	Win	Prajanchai P.K.Saenchaimuaythaigym	ONE 157	Kallang, Singapore	TKO (retirement)	3	3:00
Wins the ONE Strawweight Muay Thai World Championship.
2021-12-03	Win	Asahi Shinagawa	ONE: Winter Warriors II	Kallang, Singapore	KO (Punch & knee)	1	2:06
2021-04-02	Loss	Panpetch Or.Pitisak	Muaymanwansuk, Rangsit Stadium	Rangsit, Thailand	Decision	5	3:00
2020-11-20	Win	Rocky Ogden	ONE Championship: Inside the Matrix 4	Kallang, Singapore	Decision (Split)	3	3:00
2019-09-06	Loss	Mongkolpetch Petchyindee	ONE Championship: Immortal Triumph	Ho Chi Minh City, Vietnam	Decision (Majority)	3	3:00
2019-03-31	Win	Hiroki Akimoto	ONE Championship: A New Era	Tokyo, Japan	Decision (Majority)	3	3:00
2019-01-18	Loss	Jonathan Haggerty	ONE Championship: Eternal Glory	Jakarta, Indonesia	Decision (Unanimous)	3	3:00
2018-11-23	Loss	Josh Tonna	ONE Championship: Pursuit of Greatness	Yangon, Myanmar	Decision (Unanimous)	3	3:00
2018-05-18	Loss	Singtongnoi Por.Telakun	ONE Championship: Unstoppable Dreams	Kallang, Singapore	TKO (Doctor Stoppage)	2	2:36
2018-01-26	Loss	Sam-A Gaiyanghadao	ONE Championship: Global Superheroes	Manila, Philippines	KO (Straight Left)	2	2:30
2017-04-15	Win	Tristan Caetano	Divonne Challenge 3	France	Decision	3	3:00
2017-02-18	Win	Mohamed Bouchareb	Ring War	Monza, Italy	Decision	5	3:00
Wins WBC Muay Thai World Bantamweight -53.5kg title.
2016-10-02	Loss	Yodkowklai Fairtex	MAX Muay Thai	Thailand	KO	1
2015-12-12	Win	Tristan Caetano	The Night of Kick and Punch 2015	Italy	KO (Punches and Knee)	2
2015-10-24	Loss	Islem Hamech	La Nuit Des Challenges 14	France	Decision	3	3:00
2015-04-26	Win	Andy Howson		United Kingdom	TKO	2
2014-10-19	Win	Reece Thomson		London, England	Decision	5	3:00
2014-04-12	Win	Antar Kacem	Championnat du Monde de Boxe Thai	France	Decision	5	3:00
2014-04-12	Win	Daniel Saporito	Ring War	Italy	Decision	3	3:00
2013-11-09	Win	Pascal Kessler		Switzerland	TKO (Knees)
Wins the WFC European -53kg title.
2013-05-18	Win	Matteo Fossati	The Night of Kick and Punch III	Italy	TKO (Corner Stoppage)	1	3:00
2012-02-09	Loss	Boban Marinkovic		Jagodina, Serbia	Decision (Unanimous)	5	3:00
For the WAKO Pro Low Kick World -57kg title.
2011-10-30	Loss	Dean James	Night Of Champions	United Kingdom	TKO (Knee)	2
2011-09-25	Win	Christian Lusabio		Milan, Italy	Decision	3	3:00
Legend:   Win   Loss   Draw/No contest   Notes