TSF may refer to:
TSF is a Portuguese radio station, founded in 1989 and broadcasting from Lisbon.
TSF is one of the three main Portuguese radio news stations, alongside Antena 1 and Rádio Renascença. Its programs are focused on news. It was legally founded, though its first broadcast on 29 February 1988 was not legal, because at that time private radios were forbidden in Portugal. TSF is part of the Portuguese Global Media Group.