Lucas Dos Santos Pinheiro, known as, Lucas Pinheiro (born 11 February 1994 in Manaus, Amazon, Brazil) is a black belt Brazilian Jiu Jitsu athlete who competes professionally for the Atos Jiu Jitsu Team in the United States. Pinheiro is a 2023 World Jiu-Jitsu Champion.

Lucas Pinheiro is a 1st degree black belt student under BJJ legend André Galvão in San Diego, California. Pinheiro is also a former student of Faustino Neto (Mestre Pina) and Cícero Costha. He has earned important medals at the Brazilian National Jiu-Jitsu Championship as well as World Jiu-Jitsu Championship and is currently one of the top competitors in the Rooster and Light-featherweight divisions. In 2019, Pinheiro was ranked #9 over all weights by IBJJF in the No-Gi category.

Pinheiro won his first IBJJF No Gi World Championship in 2022, and his first IBJJF World Championship in 2023. At the end of 2023, he announced his decision to become a coach alongside Ronaldo 'Jacare' Souza at Jacare Martial Arts.

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Mitsuyo Maeda → Carlos Gracie, Sr. → Osvaldo Alves → Faustino Neto → Carlos Holanda → Lucas Pinheiro