After shakedown at Galveston, Texas, Griggs trained precommissioning crews out of Newport, Rhode Island, before reaching Norfolk, Virginia 31 March 1945.

Clearing Norfolk 26 May Griggs sailed via Canal Zone and discharged her passengers at San Francisco 1 June 1945.

She departed Port Hueneme 17 June with 1,032 Seabees embarked and touched at Eniwetok and Ulithi before discharging her passengers at Okinawa and Manila Bay, Philippine Islands.

After delivering occupation troops to Japan from Lingayen Gulf and Mindanao, Griggs took up Operation Magic Carpet duty and departed Saipan 2 November 1945, en route to San Diego, where she arrived 13 days later with many war veterans.

This article incorporates text from the public domain Dictionary of American Naval Fighting Ships.