The United Kingdom has a distinctive heritage of horse and pony breeds shaped by its varied landscapes, agricultural traditions, transport networks and rural communities. From powerful draught horses developed for farm work to hardy mountain ponies adapted to upland environments, these animals reflect centuries of selective breeding and regional history. This guide explores the principal native British horse and pony breeds, their origins, traditional roles and modern significance. It also distinguishes established breeds from regional pony populations and historical horse types, helping readers understand the diversity of horses associated with the United Kingdom. The geographical scope includes England, Scotland, Wales and Northern Ireland. Although several breeds have spread internationally, their historical connections to particular British regions remain central to their identities.