Yakov Modestovich Gakkel | |
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Яков Модестович Гаккель | |
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| Born | 30 April 1874 Irkutsk, Russian Empire |
| Died | 12 December 1945 (aged 71) Leningrad, Soviet Union |
| Known for | Aircraft and locomotive design |
| Children | Yakov Gakkel |
Yakov Modestovich Gakkel (Russian: Яков Модестович Гаккель; 30 April 1874 – 12 December 1945) was a Soviet and Russian scientist and engineer who made significant contributions to the development of aircraft and locomotives in the former Soviet Union.