The Catalina 309 is an American sailboat, that was designed by Gerry Douglas and first built in 2005.

[1][2][3] The boat was built by Catalina Yachts in the United States starting in 2005, but is now out of production.

[1][3][4] The Catalina 309 is a small recreational keelboat, built predominantly of fiberglass.

It has a fractional sloop rig, an internally-mounted spade-type rudder and a fixed fin keel.

[1][3] The boat is fitted with a Japanese Yanmar 3YM20 diesel engine of 21 hp (16 kW).