The Flat-Coated Retriever is a gundog breed originating from the United Kingdom. It was developed as a retriever both on land and in the water.
Originating in the mid-19th century in England, the Flat-Coated Retriever gained popularity as a gamekeeper’s dog. Part of its ancestry is thought to have come from stock imported from North America from the now extinct St. John's water dog, but this is unverified. Wikipedia