Ilyushin (Илью́шин), or Ilyushin Design Bureau is a Russian design bureau and aircraft manufacturer (design office prefix Il), founded by Sergey Vladimirovich Ilyushin. It began operations on January 13, 1933, by order of the People's Commissar of the Heavy Industry of the USSR and the Head of the Main Department of Aviation Industry, P.I.Baranov.
Ilyushin has developed aircraft for widely varying roles over the years. The Russian government is planning to merge Ilyushin with Mikoyan, Irkut, Sukhoi, Tupolev, and Yakovlev as a new company named United Aircraft Corporation.
Notable Ilyushin aircraft include: