The Protestant Action Society was a political party in Edinburgh active in the 1930s. It was founded by John Cormack in 1933 and had elected nine members to the Edinburgh Council in 1936 with 31 percent of the vote. One of the councilors was the Jewish antique dealer Esta Henry who was elected to one of the Canongate wards in 1936. Cormack tried to encourage the Orange Order in Scotland to join in his movement, but with so little success that he left the movement in 1939 and was not readmitted until the late 1950s. At its peak the party had 8,000 members.