Willet Titus House is a historic residential building located at Roslyn in Nassau County, New York.

It was built about 1860 and is a 2-story Italianate-style frame house with an above-grade basement story at the west end.

It consists of a 2-story, rectangular main block with a three-bay side entrance facade and a recessed 1+1⁄2-story two-bay wing.

It features porches at the front of the main block and wing.

This article about a historic property or district in Nassau County, New York, that is listed on the National Register of Historic Places, is a stub.