Reggie Stubblefield (born August 27, 1998) is an American professional football defensive back for the Hamilton Tiger-Cats of the Canadian Football League (CFL).

Stubblefield first played college football for the Prairie View A&M Panthers from 2016 to 2020 while using a medical redshirt season in 2018. He played in 20 games and recorded 117 tackles, three interceptions, 19 pass knockdowns, and two forced fumbles. He then transferred to Kansas State University to play for the Wildcats in 2021. In his final year of eligibility, he played in 12 games, starting in six, where he had 34 tackles, one sack, and two pass knockdowns.

In November 2022, Stubblefield was selected by the DC Defenders in the 2023 XFL draft. He was released by the Defenders on February 9, 2023.

On March 1, 2023, it was announced that Stubblefield had signed with the Montreal Alouettes. He played in the preseason, but was among the team's final roster cuts on June 3, 2023. However, following injuries to the team's secondary, Stubblefield was re-signed on June 26, 2023, to the team's practice roster. He then made his professional debut on July 1, 2023, against the Winnipeg Blue Bombers. He played and started in 13 regular season games where he recorded 38 defensive tackles, three special teams tackles, three sacks, two interceptions, nine pass knockdowns, and one forced fumble. At season's end, he was named the Alouettes' nominee for the CFL's Most Outstanding Rookie Award.

In 2024, Stubblefield suffered a torn ACL in the team's first game of the regular season, where he recorded four defensive tackles and one special teams tackle. He was on the six-game injured list for the remainder of the year. He became a free agent upon the expiry of his contract on February 11, 2025.

On February 12, 2025, it was announced that Stubblefield had signed with the Hamilton Tiger-Cats to a three-year contract.

Stubblefield was born in Lubbock, Texas, to parents Neoma Humphery and Reggie Stubblefield. He has three siblings.