The Border Leicester is a breed of sheep originating in England and raised primarily for meat. Border Leicesters are polled, long-wooled sheep. Though large in size and robust, they are also docile. The Border Leicester was developed in 1767 in Northumberland, England. Their name derives from the fact that their birthplace is near the border with Scotland, and their foundation stock were Dishley Leicester rams. The ewes used were either Teeswater or Cheviot, though which one exactly is often disputed. They were a fairly common breed in the U.K. by the 19th century.

This type of sheep was common in the mid 1800's but is now rarely seen in Canada. It is classed as a heritage animal.