The Bündner Oberländerschaf (also known as Grisons (French), Graubünden (German)) is a domesticated breed of sheep in Switzerland. As of 2007, there were less than 1,100 but the population is increasing and used primarily for vegetation management.
The Bündner Oberländerschaf displays white, brown or silver-grey. The head is slender and is bare. Rams have substantial horns while ewes have small horns or are polled (hornless). Both sexes display rather primitive behaviour. Multiple births are common.
When mature, rams weigh on average 72 kg (159 lb) and ewes 50 kg (110 lb). After reaching maturity, rams grow to 72 cm (28 in) and ewes 68 cm (27 in) at the withers.