Harold S. Osborne | |
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| Born | August 1, 1887 Fayetteville, New York, U.S. |
| Died | December 29, 1985 (aged 98) |
| Awards | IEEE Edison Medal (1960) |
| Scientific career | |
| Fields | Electrical engineering |
Harold Smith Osborne (August 1, 1887 – December 29, 1985) was an American electrical engineer. He worked for the American Telephone & Telegraph Company for forty years, leading the team that developed the system that enabled long-distance dialing. He was president of the Regional Plan Association and served as the mayor of Montclair, New Jersey.