Sergei Mikhailovich Tretyakov (Russian: Серге́й Миха́йлович Третьяко́в; 20 June 1892, Goldingen, Courland Governorate (modern day Kuldīga, Latvia) – September 10, 1937, Moscow) was a Russian constructivist writer, playwright and special correspondent for Pravda.
He graduated 1916 from the department of law at Moscow University. He began to publish in 1913 and just before the Russian Revolution he became associated with the ego-futurists. Soon after the publication of Iron Pause, he became heavily involved in the Siberian futurist movement known as Creation along with artists such as Nikolay Aseyev and David Burlyuk. Perhaps his most famous play at the time was the anti-imperialist Roar China! (1926), about the Wanhsien Incident.
Tretyakov was one of the founders of the constructivist journal LEF, (1923–1925), and its successor Novyi LEF (New LEF)(1927–1928), and of the associated artistic movement, whose main driving force was the poet Mayakovsky. They declared war on 'bourgeois' culture and claimed that the experimental avant garde works they produced were the artistic voice of the Bolshevik revolution.Boris Pasternak did not believe that any of the group actually wanted to destroy pre-revolutionary art, with one exception - "The only consistent and honest man in this group of negationists was Sergei Tretyakov, who drove his negation to its natural conclusion. Like Plato, Tretyakov considered that there was no place for art in a young socialist state."