The Viking 33 is a Canadian sailboat, that was designed by Cuthbertson & Cassian and first built in 1971.
The Viking 33 design was developed into the Viking 34 in 1973. The Viking 34 features a Peterson-style keel, a new interior design and a taller mast. Both designs have the same length overall of .
The design was built by Ontario Yachts in Canada between 1971 and 1973, but it is now out of production.
The Viking 33 is a small recreational keelboat, built predominantly of fiberglass, with wood trim. It has a masthead sloop rig, a raked stem, a raised reverse transom, an internally-mounted spade-type rudder controlled by a tiller and a fixed swept fin keel. It displaces and carries of ballast.
The boat has a draft of with the standard keel fitted. It has of headroom below decks. The boat came factory-equipped with a Universal Atomic 4 gasoline engine.
The design has a PHRF racing average handicap of 138 with a high of 141 and low of 138. It has a hull speed of .
In a review Michael McGoldrick wrote, "Although the design is getting a little old, the Viking 33 still has to rate as one of the better looking boats on the water. It has sleek lines and a graceful bow. It may be just a touch narrower than the boats that were built in the 1980s, but it still has the appearance of a contemporary yacht. Like the Ontario 32, the Viking was also designed by C&C and built by Ontario Yachts. Unlike the Ontario 32, this boat was designed with racing in mind."