When hostilities began in Korea, "Ozbourn" joined Task Force 77 (TF 77). She participated in the Inchon landing, the Blockade of Wonsan and assisted with air operations off the Korean coast, twice receiving the Korean Presidential Citation for her efforts. In February 1951, despite having received two direct hits and several near misses from shore batteries the same day, "Ozbourn" sent her motor whale boat to rescue a downed pilot floating in a mine field. After returning to San Diego for repairs and overhaul and a brief assignment with TF 95 in the Wonsan area, "Ozbourn" returned to TF 77 in July 1952. In short order she rescued 18 men who had jumped from to avoid a menacing fire and picked up 3 downed airmen from . During the next two years "Ozbourn" made regular tours with the 7th Fleet followed by training operations in the San Diego area.