Tiago Carvalho Santos (born 23 July 2002) is a Portuguese professional footballer who plays as a right-back for the Ligue 1 club Lille.
Santos is mostly a youth product of Sporting CP, with stints at the academies of Oeiras, Sacavenense, and moving to the U23 side of Estoril in 2021. On 9 July 2022, he was promoted to Estoril's senior side for the 2022–23 season.