HNoMS Oslo (pennant number F300) was an Oslo-class frigate of the Royal Norwegian Navy.

The Oslo class was based on the American Dealey-class destroyer escorts with modifications for northern sea conditions, including more freeboard forward.

This time the aft twin 3-inch mount was removed to make space for the Teme III rocket-launched depth charges and 40 mm/70 calibre gun and Terne III and TSM 2633 hull and variable depth sonar and replacing the SQS-36.

The ship was constructed by the Navy Main Yard, Karljohansvern in Horten, Norway, with the keel laid down in 1963.

The frigate had suffered a boiler feed pump failure and drifted in heavy seas before running aground.