The Sporting Lucas Terrier is a small breed of dog of the terrier type. The breed is named for Jocelyn Lucas.
The Sporting Lucas Terrier was developed in Scotland (firstly in Mey, Caithness and later in Abington, South Lanarkshire) from the Lucas Terrier, the Jack Russell Terrier, and various Fell terrier by Brian Plummer in the 1990s, in an effort to create a good working terrier. In 1999 the Lucas Terrier Club de-listed all of Brian Plummer's dogs as they "did not want infusions of other terrier types introduced into their bloodlines". Breed clubs were then set up for Plummer's dog, and it became the Sporting Lucas Terrier, despite the fact that the connection to the original Lucas terrier is tenuous.The Lucas Terrier was created by Major Jocelyn Lucas in the late 1940s, in an effort to breed a Sealyham Terrier that could Working terrier, from Sealyhams and Norfolk Terriers. Today it has returned to being primarily a pet and showdog.Another breed of terrier developed by Brian Plummer is the Plummer Terrier. It is similar, but bull terrier was also used, and the dog developed a reputation for quarrelsomeness.