Timothy Castagne (born 5 December 1995) is a Belgian professional footballer who plays as a full back for Premier League club Fulham and the Belgium national team.
Castagne began his senior career with Genk after graduating from the club's youth academy. After moving to Italy with Atalanta in 2017, he was signed by English side Leicester City in 2020, with whom he won the FA Cup in 2021. He joined Fulham in 2023.