The 2021-22 Italian football winter transfer window runs from 3 to 31 January 2022. This list includes transfers featuring at least one club from either Serie A or Serie B that were completed after the end of the summer 2021 transfer window on 30 September 2021 and before the end of the winter 2021-22 window on 31 January.
Legend
The 2023–24 season was US Salernitana 1919's 105th season in existence and third consecutive season in the Serie A. They also competed in the Coppa Italia.