The Archer class is a class of patrol and training vessel in service with the United Kingdom's Royal Navy, commonly referred to as a "fast training boat". Most are assigned to Coastal Forces Squadron. HMS Tracker and HMS Raider are armed and provide maritime force protection to high value shipping in the Firth of Clyde and are most commonly employed as escorts for submarines transiting to Faslane. Pursuer and Dasher were also armed during their deployment on maritime force protection duties with the Gibraltar Squadron from 2020-2022.

Coastal Forces was a division of the Royal Navy initially established during World War I, and then again in World War II under the command of Rear-Admiral, Coastal Forces. It remained active until the last minesweepers to wear the "HM Coastal Forces" cap tally were taken out of reserve in 1968. The division received more gallantry awards than any other branch of the Royal Navy during that period.