Norair Martirosovich Sisakian (Sissakian) (Armenian: Նորայր Մարտիրոսի Սիսակյան; Russian: Норайр Мартиросович Сисакян, 25 January 1907 – 12 March 1966) was a Soviet biologist of Armenian origin who worked as an engineer in the Soviet space program, working mainly on biomechanics effects.

Sisakian is also one of the founders of space biology,[1][2] an outstanding organizer of science, a member of the Pugwash movement.

During his life Sisakian created fourteen laboratories and the Puschin center of the Russian Academy of Sciences.

[3] In 2001 the "Academician Norair Martirosovich Sissakian" book was released by the Russian publishing house "Nauka".

[5] His son, Alexei Sisakian (1944–2010), was a well-known physicist, academic of the Russian Academy of Sciences and Armenian Academy of Sciences, the Vice-president of "Dubna" International University, director of the Joint Institute for Nuclear Research in Dubna, Russia.