List of Portuguese football transfers winter 2012–13

This is a list of Portuguese winter football transfers for the 2012–13 season. The winter transfer window opened on 1 January 2013 and closed on 31 January 2013. Players could be bought before the transfer window opened, but were not permitted to join their new clubs until 1 January. Additionally, players without a club could join at any time and clubs were able to sign a goalkeeper on an emergency loan if they had no registered goalkeeper available. Only moves involving Primeira Liga clubs are listed; included are clubs that completed transfers after the end of the summer 2012 transfer window and before the end of the 2012–13 winter window.

Transfers

 * Some players may have been bought after the end of the 2012 summer transfer window in Portugal but before the end of that country's transfer window closed.