USS Shamrock Bay (CVE-84) was the thirtieth of fifty Casablanca-class escort carriers built for the United States Navy during World War II. She was named after Shamrock Bay, located within Baranof Island, of the Territory of Alaska. The ship was launched in February 1944, commissioned in March, and served in support of the Invasion of Lingayen Gulf, the Invasion of Iwo Jima and the Battle of Okinawa. Postwar, she participated in Operation Magic Carpet. She was decommissioned in July 1946, when she was mothballed in the Atlantic Reserve Fleet. Ultimately, she was broken up in November 1959.