Stepan Fyodorovich Kechekjan (Russian: Степан Фёдорович Кечекьян; 25 March 1890, Nakhichevan-on-Don – 24 June 1967, Moscow) was a Russian-Armenian lawyer, historian and a specialist in the field of history and theory of state and law and history of political and legal doctrines.

In 1930–1931 he was a professor of the Institute of Soviet Construction and Law under the Party's Central Executive Committee of Azerbaijan SSR.

[3] Professor of the Academy of Social Sciences under the CPSU Central Committee (1946–1954) and MGIMO (1948–1953, head of a department since 1949).

In addition to his scientific activity, Stepan Kechekjan was engaged in practical activity: in the 1920s–1930s, he consulted the board of the Moscow-Kursk Railroad, the Department of International Settlements of the USSR People's Commissariat of Finance, and also headed the legal group of the All-Union Union of Artificial Fibers of the People's Commissariat of Industry of the USSR.

He was the author of more than 160 scientific works, including a number of monographs and textbooks for universities, many of which have been translated into German, French, English, Polish, Spanish, Japanese, Czech, Slovak, Hungarian, Bulgarian and other languages.

He made a major contribution to the development of the theory of sources of law and the general doctrine of legal relations, proposed a new interpretation of a number of texts by Aristotle, Spinoza and other classics of political philosophy.