Breed of the Border is a 1924 American silent Western film directed by Harry Garson and starring Maurice 'Lefty' Flynn, Dorothy Dwan, and Louise Carver.
As described in a film magazine review, Circus Lacy arrives in a border town following the robbery of a mine, finding the father of Ethel Slocum is under suspicion. He protects Slocum from Sheriff Wells and then routes a bully who menaces Ethel. Later he locates the stronghold of the bandits who are led by Red Lucas and captures the leader.
With no prints of Breed of the Border located in any film archives, it is a lost film.