The Swiftsure 33 is a Dutch sailboat that was designed by American naval architect Philip Rhodes as cruiser and first built in 1959.

It has a masthead sloop rig; a spooned, raked stem; a raised counter, angled transom; a keel-hung rudder controlled by a tiller and a modified, fixed, long keel, with a cutaway forefoot and a retractable centerboard.

[1][3] The boat is fitted with a Universal Atomic 4 30 hp (22 kW) gasoline engine for docking and maneuvering.

The table has a vertical hollow steel tube running though the aft end, which houses the centerboard control cable.

In the later Commodore Swiftsure model, mostly built by Royal Netherlands Aircraft, the table folds and stows away and the centerboard control cable is routed though the port cabin cabinets.The earlier boats have bronze deck hardware, while the Commodore Swiftsure model has a mix of stainless steel and aluminum hardware, with teak trim.