Chaplygin Siberian Scientific Research Institute Of Aviation (SibNIA) (Russian: Сибирский научно-исследовательский институт авиации им.

С. А. Чаплыгина) is a research institute based in Novosibirsk, Russia and established in 1941.

[1] Researchers at SIBNIA have published work on topics such as localization of the sources of acoustic emissions in strength testing of aviation materials, fatigue and fracture in steel and concrete structures, piezotransducer amplification, strengths of materials, and metallurgy.

[1] SIBNIA came into existence in 1941 when the Central Aerohydrodynamics Institute (TsAGI) was evacuated to Novosibirsk to escape from the German advance on Moscow.

Sergey Chaplygin, the second director of TsAGI, died in Novosibirsk on 8 October 1942 and was buried in front of SIBNIA's main administration building.