The Seafarer 23 Kestrel is a Dutch trailerable sailboat that was designed by Sparkman & Stephens in daysailer and cruiser models, first built in 1963.

[1][2][4] The design was built by De Vries Lentsch in Amsterdam, starting in 1963 and imported into the United States by Seafarer Fiberglass Yachts of New York City.

It has a masthead sloop rig; a spooned, raked stem; a raised counter, angled transom; a keel-mounted rudder controlled by a tiller and a fixed, stub, long keel, with a retractable centerboard.

Model configuration names included Cruiser, Overnighter, Catalina, Nassau, Nantucket, Monhegan and Olympic.

[4] In a 2010 review Steve Henkel wrote, "the grace of the classic Sparkman & Stephens hull form will appeal to traditional sailors.