The Plymouth De Luxe and Special De Luxe were full-sized automobiles which were produced by American manufacturer Plymouth during the 1933–1942 and 1946–1950 model years.

The Plymouth Deluxe Model PD appeared in 1933, shortly after the Plymouth Six Model PC which was the company's first six-cylinder automobile but offered a 107 in (2,718 mm) wheelbase versus 112 for the De Luxe.

[3] In 1941, the Roadking name was dropped for the low trim Plymouths, which were referred as P11 and not renewed in 1942, making the De Luxe, the entry level.

[5] The engine in 1946 was a 95 bhp (71 kW) 217.8 cu in (3.6 L) Plymouth Straight Six.

[1] Byrne, Jared (writer): How to restore historical cars 1940-1950