The 11:Metre One Design, also called the 11 Metre or 11 Meter, is an American trailerable sailboat that was designed by Ron Holland and Rolf Gyhlenius as a one-design racer and first built in 1990.

The design was built by Precision Boat Works in Palmetto, Florida, United States, starting in 1990.

The 11 Meter is a racing keelboat, built predominantly of cored fiberglass.

It has a fractional sloop rig, a raked stem, a sharply reverse transom, an internally mounted spade-type rudder controlled by a tiller and a fixed fin keel with a weighted lead bulb.

For sailing downwind the design may be equipped with a symmetrical masthead spinnaker.