Guilherme Smith (born 11 June 2003, age 23) is a Brazilian left winger whose senior career is already tied closely to Union Saint-Gilloise. Wearing number 11, he has made his mark there without needing the usual noise that follows every half-promising wide player.
Across two league seasons with Union, Smith has made 22 league appearances and scored four goals. His most productive league campaign came in 2025–26, when he scored two goals in 12 appearances, giving him a useful platform rather than a finished reputation.
He has remained involved in 2026–27, with 10 league appearances and two goals, alongside outings in the Champions League qualifiers, the Super Cup, the Europa League and the Pro League play-offs. Across all competitions for Union this season, he has 26 appearances and seven goals.
His form has been solid overall, with his recent outings showing an improvement on his season level. At this stage, Smith’s career is still largely a Union Saint-Gilloise story: regular minutes, some end product, and a continuing place in the first-team picture.