HMCS Bras d'Or

HMCS Bras d'Or was a hydrofoil that served in the Canadian Forces from 1968 to 1971. During sea trials in 1969, the vessel exceeded 63 knots, making her the fastest unarmed warship in the world at the time.

The vessel was originally built from 1960 to 1967 for the Royal Canadian Navy, as a project for the testing of anti-submarine warfare technology on an ocean-going hydrofoil. The RCN was replaced on 1 February 1968 by the unified Canadian Armed Forces, and Bras d'Or was commissioned into that service several months later. Changes in priorities and cost overruns later led to the project's cancellation.