Davi Ramos (born November 5, 1986) is a Brazilian professional mixed martial artist and Brazilian jiu jitsu practitioner who competes in the Lightweight division of Absolute Championship Akhmat (ACA). He is ranked #9 in the ACA Lightweight rankings. A professional since 2010, he most notably competed in the Ultimate Fighting Championship.

Ramos made his professional MMA debut in July 2010. Over the next six years, he amassed a record of six wins against one defeat.

Ramos made his UFC debut on March 11, 2017, in a Welterweight bout as a replacement for Max Griffin against Sérgio Moraes at UFC Fight Night: Belfort vs. Gastelum. He lost the fight via unanimous decision.

In his second fight for the promotion, Ramos faced Chris Gruetzemacher on December 9, 2017, at UFC Fight Night: Swanson vs. Ortega. He won the fight via rear-naked choke submission in the third round.

For his third fight with the promotion, Ramos faced Nick Hein on May 12, 2018, at UFC 224. He won the fight via rear-naked choke submission in the first round.

Ramos faced John Gunther on November 10, 2018, at UFC Fight Night 139. He won the fight via a rear-naked choke in round one.

Ramos faced promotional newcomer Austin Hubbard on May 18, 2019, at UFC Fight Night 152. He won the fight via unanimous decision.

Ramos faced Islam Makhachev on September 7, 2019, at UFC 242. He lost the fight via unanimous decision.