Leandro Barreiro Martins (born 3 January 2000) is a Luxembourgish professional footballer who plays as a defensive midfielder for Benfica and the Luxembourg national team.

He moved to the Racing FC Union Luxembourg Academy, from where he garnered attention throughout Europe, including from Paris Saint-Germain.

[6] Mainz's sporting director further confirmed that Barreiro would sign for the Portuguese outfit.

[7] On January 17th 2025, he netted his first career hat-trick (and was subsequently awarded match MVP), as Benfica won 4-0 at home against Famalicão.

[9] Barreiro made his international debut for the Luxembourg national football team in a 1–0 friendly win against Malta on 22 March 2018.