Valery Alekseyevich Legasov (Russian: Валерий Алексеевич Легасов; 1 September 1936 – 27 April 1988) was a Soviet inorganic chemist and a member of the Academy of Sciences of the USSR. He is known for his work as the chief of the commission investigating the Chernobyl disaster.
Legasov hung himself at his Moscow apartment on 27 April 1988, aged 51.
[the official Soviet news agency] Tass said Legasov made a "significant contribution in the working out and realization of immediate measures aimed at liquidating the consequences of the accident."