Unione Sportiva Salernitana 1919, commonly referred to as Salernitana, isan Italian football club based in Salerno, Campania. The original club was founded in 1919 and has been reconstituted three times in the course of its history, most recently in 2011. The current club is the heir of the former Salernitana Calcio 1919 and it restarted from Serie D in the 2011–12 season. Salernitana returned to Serie A in 2021, after a break of 23 seasons, having finished second in Serie B.

The Salerno-based club was originally founded in 1919 as the Unione Sportiva Salernitana. The club was known as Società Sportiva Salernitanaudax for a time during the 1920s following a merger with Audax Salerno. In 1978, the club was renamed Salernitana Sport. The club has spent the majority of their history at the Serie B and Serie C levels of Italian football.

Salernitana play their home matches at Stadio Arechi.In their early years, Salernitana competed in the regional Italian Football Championship. They played at this level for four seasons during the 1920s. Since that time the club returned to the top level of Italian football twice; they played in Serie A during 1947–48 and 1998–99.

In 2005, the club went bankrupt but was restarted by Antonio Lombardi, changing the name from Salernitana Sport to Salernitana Calcio 1919.