Harmon House may refer to:
Places and structures United States (by state, then city) Celora Stoddard/Lon Harmon House, Phoenix, Arizona, listed on the National Register of Historic Places (NRHP) in Maricopa County Harmon–McNeil House, Santa Ana, California, listed on the NRHP in Orange County Southwick-Harmon House, Sarasota, Florida, NRHP-listed John C. Harmon House, Topeka, Kansas, listed on the NRHP in Shawnee County Fitzpatrick–Harmon House, Prestonsburg, Kentucky, listed on the NRHP in Floyd County William Harmon House (Miles City, Montana), NRHP-listed William Harmon House (Lima, New York), NRHP-listed Francis E. Harmon House, Ashtabula, Ohio, listed on the NRHP in Ashtabula County Harmon–Neils House, Portland, Oregon, NRHP-listed Oliver John Harmon House, Price, Utah, listed on the NRHP in Carbon County