Boris Danilovich Korolyov (Russian: Борис Данилович Королёв; 1884/85–1963) was a Soviet sculptor-monumentalist, teacher and public figure.

As an artist Korolyov stood at the origins of the Soviet school of sculpture, its mainstream, but he also was one of the leading figures in the avant-garde movement.

Born in Moscow and educated at the Moscow School of Painting, Sculpture and Architecture under Sergei Volnukhin, Korolyov was a committed revolutionary, deported twice for his political activity, and a leading figure of avant-garde sculpture in revolutionary Russia.

However, Korolyov's rapidly produced 1919 concrete statue of Mikhail Bakunin, done in a Cubo-Futurist style and set up in Moscow, proved to be deeply unpopular and was dismantled within weeks.

Despite changing tastes, Korolyov continued working in Cubist style into the 1920s, and became professor of sculpture at the Soviet state art school, Vkhutemas.