Coordinates: 45°20′11″N 75°35′15″W / 45.336495°N 75.587504°W / 45.336495; -75.587504
Canadian Forces Station Leitrim, also referred to as CFS Leitrim, is an important Canadian Forces Station located in the neighbourhood of Leitrim in Ottawa, Ontario. It is concerned with the interception, decrypting and processing of communication for the Communications Security Establishment Canada and the Canadian Forces, and forms part of the ECHELON system.
The station's motto PACERM PETERE means Research For Peace.