Cossa is a surname of Italian and Mozambican origin that may refer to:

Cossa
PronunciationItalian: [ˈkɔssa]
Language(s)Italian, Portuguese
Origin
Meaning1. short form of Bonaccorsa
2. 'thigh'
3. 'Corsican' (feminine form of Cossu)
Other names
Variant form(s)del Cossa, Cosso