The 3rd Medium Regiment, Royal Canadian Artillery[1] was raised as a medium artillery regiment of the Canadian Army on January 26, 1942.

Formed in Petawawa, Ontario, it was made up of two former coastal batteries, the 5th, from the west coast, and the 87th, from the east coast.

In March 1942, the 3rd Medium was assigned to I Canadian Corps in England; in July 1944, the unit was transferred to II Canadian Corps for service in Northwest Europe.

The 3rd Medium Regiment, RCA, was disbanded on November 16, 1945.

This Canadian military article is a stub.