A trimaran is a type of multihull sailing boat. Traditionally a trimaran consists of two hulls - called the main and the jib - with a central mast and a single sail on each. The boats were designed for speed and agility in tight sailing conditions.

Trimarans are used for racing and cruising, and are also popular among fishing families and small yacht clubs. They are relatively simple to sail, and can be sailed by a single person using only basic skills. They are typically very fast and stable boats, and are best suited for extended cruises.