Conklin Mountain House is a historic home located at Olean in Cattaraugus County, New York. It is a Second Empire style wood frame dwelling built in 1886. The front facade features a three story tower with mansard roof and a wraparound porch. The interior features elaborate and extensive woodwork. It was constructed by the owners of Conklin Wagon Works, one of Olean's most important industries in the late 19th century. It was subsequently owned by the Mountain family, who operated the Mountain Clinic Infirmary. It was listed on the National Register of Historic Places in 1998.