| US Post Office-Penn Yan | |
| Location: | 159 Main St., Penn Yan, New York |
| Coordinates: | 42.6622°N -77.0544°W |
| Built: | 1912 |
| Architect: | Taylor, James Knox; US Treasury Department |
| Architecture: | Colonial Revival |
| Added: | May 11, 1989 |
| Area: | less than one acre |
| Refnum: | 88002403 |
US Post Office-Penn Yan is a historic post office building located at Penn Yan in Yates County, New York. It was designed and built in 1912–1913 and is one of a number of post offices in New York State designed by the Office of the Supervising Architect of the Treasury Department, James Knox Taylor. It is a symmetrically massed, -story red brick structure on a granite-clad raised basement in the Colonial Revival style. It is a contributing element in the Penn Yan Historic District.[1] It was listed on the National Register of Historic Places in 1989.