Gaetano (anglicized Cajetan) is an Italian masculine given name.

It is derived from the Latin Caietanus, meaning "from Caieta" (the modern Gaeta).

The given name has been in use in Italy since medieval period, although it also remained in use as a byname indicating people from Gaeta, as in Thomas Cajetan or Gaetanus (1469–1534).

The modern given name can be traced to Saint Gaetano dei Conti di Tiene (1480–1547) who was canonized in 1671.

The feminine form is Gaetana (also Caetana and Cayetana).