The O-Jolle – (Olympiajolle) – was created as the Monotype class for the 1936 Olympic Games by designer Hellmut Wilhelm E. Stauch (GER, later RSA).

The boat is a Bermuda rig and the hull was originally carvel - later GRP and cold moulded plywood construction were allowed.

The O-Jolle has very good sailing capabilities and can cater for a wide spectrum of sailors from young to old and from light to heavyweight.

The O-Jolle is still one of the largest dinghy classes in Germany and the Netherlands - the International Olympiajollen Union has over 500 members.

The O-Jolle is still raced in Germany, the Netherlands, Austria, Italy and Switzerland.