SS C. W. Post was a Liberty ship built in the United States during World War II.

She was named after C. W. Post, an American inventor, breakfast cereal and foods manufacturer and a pioneer in the prepared-food industry.

C. W. Post was laid down on 6 October 1944, under a Maritime Commission (MARCOM) contract, MC hull 2504, by the St. Johns River Shipbuilding Company, Jacksonville, Florida; she was sponsored by Marjorie Merriweather Post, the daughter of the namesake, and was launched on 8 November 1944.

On 4 March 1948, she was laid up in the James River Reserve Fleet, Lee Hall, Virginia.

On 20 June 1957, she was withdrawn from the fleet to be unloaded, she returned empty on 1 July 1957.