The Newfoundland Ranger Force was the police force of the Dominion of Newfoundland. It provided law enforcement and other government services to outports for 15 years. It existed from 1935 to 1950, at which point it was merged into the Royal Canadian Mounted Police (RCMP). 204 men served as Rangers during its existence, though at any given time the force did not exceed 72 members.

The Commission of Government decided to model the Newfoundland Ranger force on the RCMP and not the Royal Newfoundland Constabulary, which at the time were in operation at St. John's.

Recruits had to be male, single, between the age of 19 (though men as young as 17 managed to join) to 28, have attained high school grade 11, stand at least 5 feet 9 inches (175 cm) tall and weigh not more than 185 pounds (84 kg).

Training, which included paramilitary marching, battle drill and small arms practice, was administered by a sergeant major of the Newfoundland Militia.

The uniform, similar to that of the RCMP, consisted of a khaki tunic and breeches with a brown stripe, fur caps as winter attire. The dress uniform was of blue serge and accompanied by swords and sometimes hickory batons for riot control.

The badge was of a caribou head inscribed with the motto ubique, meaning everywhere.

Headquarters were located in the basement of the Colonial Building in St. John's and the forces men were housed in temporary barracks in a tent in Whitbourne, which later became permanent HQ from 1936 to 1942 In 1942 HQ moved to Kilbride and remained until the force was disbanded in 1950.

They were responsible for carrying out policies of six government departments;