U. S. Post Office and Federal Building | |
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| Location | 135–149 High St., Hartford, Connecticut |
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| Coordinates | 41°46′11″N 72°40′50″W / 41.76972°N 72.68056°W |
| Area | 1.7 acres (0.69 ha) |
| Built | 1931–1933 |
| Architect | Malmfeldt, Adams & Prentice |
| Architectural style | Neoclassical, Art Deco, Stripped Classical |
| NRHP reference No. | 81000623[1] |
| Added to NRHP | October 19, 1981 |
The William R. Cotter Federal Building is a historic post office, courthouse, and federal office building located at 135–149 High Street in Hartford, Connecticut. It was the courthouse for United States District Court for the District of Connecticut until 1963.