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Science & Nature • Sheep Breed

Merino

The Merino is a breed or group of related domestic sheep known for very fine, soft wool.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated September 11, 2026|2 min read| Fact-checked

The Merino is a breed or group of related domestic sheep known for very fine, soft wool. It originated in the Iberian Peninsula, especially Spain, and later spread widely, becoming important in wool production in many countries.

Origin and history

Merinos originated in the Iberian Peninsula, especially Spain, and were known by the 12th century. For a long period, Spain tightly controlled the breed and its export, which helped preserve its wool trade value.

Characteristics

Merino sheep are usually medium-sized and selected for wool quality rather than carcass size. Their fleece is especially fine and soft, and the breed has been developed into many strains with variation in size, horns, and fleece traits.

Global spread and breeding influence

After leaving Spain, Merinos spread to regions including Australia, New Zealand, South Africa, South America, and North America. They became foundation stock for numerous fine-wool breeds and strains.

Economic importance

Merinos are among the most important wool sheep in the world. Their fleece is widely used in textile production, especially for apparel and other high-quality wool products.

Key facts

  • Merino is a domestic sheep breed or breed group valued for fine wool.
  • The breed originated in the Iberian Peninsula during the High Middle Ages, with Spain especially central to its history.
  • Merinos were long restricted by Spain, and export of the breed was forbidden for centuries.
  • The breed spread globally and contributed to many later fine-wool sheep strains and breeds.
  • Merino wool is noted for its fineness, softness, and crimp.
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Canadian context

Merino wool is relevant to Canadian textile consumers and apparel production, where fine wool is used in clothing and performance fabrics. Merino sheep are not native to Canada, but Merino wool and Merino-based garments are widely sold in the Canadian market.

Frequently asked questions

What is a Merino?
A Merino is a breed or group of related domestic sheep best known for producing very fine wool.
Where did Merinos originate?
Merinos originated in the Iberian Peninsula, especially Spain, during the High Middle Ages.
What are Merinos mainly used for?
They are bred predominantly for wool production rather than meat.
Why are Merinos famous?
They are famous for wool that is especially fine, soft, and crimped.
Did Merinos spread beyond Spain?
Yes. They were introduced to many regions, including Australia, New Zealand, South Africa, and the Americas.
Are Merinos a single breed?
The term can refer to a breed or to a group of closely related breeds, strains, and variants derived from the original type.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Merino
    Supports: Origin, global spread, breed status, wool characteristics, and related strains
  2. Encyclopaedia Britannica — https://www.britannica.com/animal/Merino-breed-of-sheep
    Supports: Historical origin in Spain, adaptation, physical traits, and breeding influence
  3. Oklahoma State University — https://breeds.okstate.edu/sheep/breeds-of-merino-sheep
    Supports: Spanish origin, wool-focused breeding, and Australian development
  4. Oklahoma State University — https://breeds.okstate.edu/sheep/medium-wool-merino-sheep.html
    Supports: Merino wool diameter, wool production focus, and Australian strain characteristics