The lurcher is not a dog breed, but rather a type of dog. It is a hardy crossbred sighthound that is generally a cross between a sighthound and any other breed, usually a pastoral dog or Terrier. Collie crosses have always been very popular. Lurchers can be crossed several times.

Because Lurchers are a crossbreed there is no set type, so they can be as small as a Whippet or as large as a Deerhound; but most are chosen for a size similar to that of a Greyhound, and a distinct sighthound form is preferred.

The coat type and upkeep requirements will vary depending on the type of cross. Coat types range from being short and smooth like that of a Greyhound, to slightly longer and thicker like that of a collie, to rough and broken like that of a terrier.

Temperament will also vary somewhat depending on the type of cross. Many Lurchers have temperaments that are very similar to purebred sighthounds like the Greyhound, but some have temperaments that are influenced by other breeds like herding breeds and terrier breeds.