Ruben Popa, Romanian footballer
Ruben Popa (born 22 March 1989) is a Romanian footballer who plays for FSV Pfaffenhofen.

Popa started off his footballing career training three times a week at Romanian club FC UTA Arad, before later moving to Germany with his father. At the end of June 2009, Popa signed for SSV Jahn Regensburg II and made his professional debut for the first team during the 2011–12 3. Liga season in a 2–0 away loss to SC Preußen Münster. In summer 2013, he was promoted to the senior team.