The Lincoln sheep derives its name from Lincolnshire, the large eastern English county where the breed was developed over centuries. This geographic designation has remained the consistent breed name since formal recognition, with "Lincoln" serving as the universal designation worldwide. The breed is sometimes referenced as "Lincoln Longwool" emphasizing their defining characteristic of producing the longest, most lustrous wool of any sheep breed, though "Lincoln" alone is the standard designation. This breed represents one of England's oldest and most influential sheep breeds, with documented breeding programs dating back to the late 1700s when Robert Bakewell and other early livestock improvers began systematic selective breeding creating modern Lincoln type from earlier Lincolnshire sheep populations.
The breed's development history reflects the agricultural improvement movement of 18th and 19th century England. Ancient Lincolnshire sheep populations grazed the rich marshlands and pastures of eastern England for centuries, gradually increasing in size and wool quality through informal selection. In the late 1700s, Robert Bakewell's revolutionary livestock breeding principles were applied to Lincolnshire sheep, with breeders systematically selecting for increased size, improved conformation, and enhanced wool quality and length. By the early 1800s, a distinct breed type had emerged that was significantly larger and more productive than earlier types, with exceptionally long, lustrous fleeces that commanded premium prices for quality textiles.
While "Lincoln" and "Lincoln Longwool" are the primary designations, historical references may distinguish between "Old Lincoln" (the pre-improvement type) and "Improved Lincoln" or "New Leicester-Lincoln" (the systematically bred improved type), though these distinctions are largely historical as modern Lincolns descend entirely from the improved type. In England, the breed may be referenced simply as "Lincolns" in casual contexts. The breed's scientific classification follows standard domestic sheep nomenclature with Ovis aries applying to all domestic sheep breeds. The Lincoln's historical and genetic significance cannot be overstated, as their genetics appear in numerous modern breeds worldwide including Columbia, Corriedale, Polwarth, and countless other crossbreds developed by crossing Lincoln rams with various breeds to increase size, improve wool length, or enhance overall productivity.
The Lincoln Longwool Sheep Breeders Association in England maintains breed standards and registries, with similar organizations existing in other countries including the United States, Australia, and New Zealand. However, Lincoln populations remain modest compared to commercial breeds, with the breed classified as "threatened" or "at risk" by various livestock conservation organizations due to declining numbers as commercial wool markets shifted toward finer wools and synthetic fibers reduced demand for longwool products. Today, Lincolns are primarily maintained by dedicated breeders appreciating their historical significance, impressive appearance, unique fiber, and genetic value for crossbreeding programs. Their influence on global sheep genetics ensures their historical importance even as purebred populations remain limited, and growing interest in heritage breeds and specialty fibers is creating renewed appreciation for these magnificent animals producing truly unique, lustrous longwool.

