House at 112 Sea Cliff Avenue

112 Sea Cliff Avenue is a historic home located at Sea Cliff in Nassau County, New York. It is a $2 1/2$-story, irregularly shaped building dominated by a 3-story, octagonal tower with a tent roof in the Queen Anne style. The original section was built in 1884, and the eastern extension and tower added in 1887. The main facade features a projecting two-bay cross-gable with a jerkin head roof.

It was listed on the National Register of Historic Places in 1988.