王棕属（学名：Roystonea）是棕榈科下的一个属，为乔木植物。该属共有约17种，分布于热带美洲，当中包括王棕。

Royal Palms in their natural system, Camajuani Valley, Cuba.

Royal Palm, Boca Raton, Florida

Young Roystonea regia, aged about three years - Overlapping leaf sheaths are clearly visible, Kolkata, India.

Roystonea is a genus of eleven species of monoecious palms, native to the Caribbean Islands, and the adjacent coasts of Florida and Central and northern South America. Commonly known as the royal palms, the genus was named for Roy Stone, a U.S. Army engineer. It contains some of the most recognizable and commonly cultivated palms in tropical and subtropical regions.