The Rush 31 is a French sailboat that was designed by Ron Holland as an International Offshore Rule Half Ton class racer and first built in 1979.

[1][2][7][8] The Rush 31 is a racing keelboat, built predominantly of fiberglass, with wood trim.

It has a masthead sloop rig, a raked stem, a reverse transom, an internally mounted spade-type rudder controlled by a tiller and a fixed fin keel.

[1][2] The boat is fitted with a French Renault Couach diesel engine for docking and maneuvering.

[9][10] In its Rush Royal Standard model it was chosen as the one-design boat for the Tour de France à la voile for 1982-1983.