| Ilya Smirnov | |
| Birth Date: | 30 July 1887 |
| Birth Place: | Bolshoye Otryakovo (now Parfenyevsky District), Kologrivsky Uyezd, Kostroma Governorate, Russian Empire |
| Death Date: | 28 June 1964 |
| Death Place: | Moscow, Soviet Union |
| Allegiance: | Russian Empire Soviet Union |
| Branch: | Imperial Russian Army Soviet Red Army |
| Rank: | lieutenant general |
| Commands: | 18th Army 24th Army 4th Guards Army Lvov Military District |
| Serviceyears: | 1908–1917 (Russian Empire) 1918–1953 (Soviet Union) |
| Battles: | World War I Russian Civil War World War II |
Ilya Kornilovich Smirnov (Russian: Илья́ Корни́лович Смирно́в; 30 July 1887 – 28 June 1964) was a Soviet army general. He fought in the Imperial Russian Army during World War I before going over to the Bolsheviks during the subsequent Civil War. He was a recipient of the Order of Lenin, the Order of the Red Banner and the Order of Kutuzov. He retired in 1953 at the age of 66.