MS Palm Beach Princess is a cruise ship owned by Mauro Sebben and operated by Palm Beach Cruises on casino cruises out of the Port of Palm Beach in Riviera Beach Florida. She was built in 1964 by Wärtsilä Helsinki New Shipyard Helsinki Finland for Finland Steamship Company as MS Ilmatar. From 1970 until 1974 and again from 1978 to 1980 she was marketed as a part of Silja Line fleet. In 1973 she was lengthened at HDW Hamburg Germany by 20.04 m (65 ft 9 in).
Builders of the Palm Beach Princess are Finland and Wärtsilä.