| Massese | |
| Image Alt: | two sheep, one lead-grey, one almost black |
| Country: | Italy |
| Use: | principally milk, also meat |
| Maleweight: | 90 kg |
| Femaleweight: | 65 kg |
| Maleheight: | 85 cm |
| Femaleheight: | 77 cm |
| Woolcolour: | lead-grey to black |
| Facecolour: | black |
| Note: | horned in both sexes |
The Massese is an Italian breed of domestic sheep from the Alpi Apuane mountains of the province of Massa Carrara, in Tuscany in central Italy. It takes its name from the town of Massa. It is raised throughout most of Tuscany, and also in Emilia–Romagna, Liguria and Umbria. It has common origins with the other indigenous sheep breeds of the Apennines.
The Massese has common origins with the other indigenous sheep breeds of the Apennines. It is one of the seventeen autochthonous Italian sheep breeds for which a genealogical herd-book is kept by the Associazione Nazionale della Pastorizia, the Italian national association of sheep-breeders. The herd-book was established in 1971. In 1986 total numbers for the breed were recorded as, of which 66% were in Tuscany and 27% in Emilia–Romagna. In 2006 the population was estimated at, of which were registered in the herd-book; in 2013 the number recorded in the herd-book was .
The Massese remains in oestrus throughout the year, and normally lambs three times every two years; this, coupled with a twinning rate of 135%, allows production of two lambs per year. The lambs are slaughtered at a weight of .
The milk yield is about per lactation for primiparous, and for pluriparous, ewes; it may reach per lactation. The milk has on average 6.2% fat and 5.3% protein.