The Office of Supply was an administrative department of the Grayson Space Navy.

It was the Grayson counterpart to the Royal Manticoran Navy's Logistics Command, and as such was responsible for the logistical management of the GSN. Together with its Manticoran counterpart, the Office of Supply established the Joint Navy Military Transport Command to better satisfy both navies' logistical requirements during their war against the People's Republic of Haven. (HH7)

Its commanding officer in the 1920s PD was Rear Admiral Carlyle Jones. (Companion)