Mikhail Antonovich Usov (Russian: Михаил Антонович Усов; February 20, 1883 in Kainsk (now Kuybyshev), Tomsk Governorate  – July 26, 1939 in Belokurikha, Altai Krai) was a Russian and Soviet geologist and member of the Academy of Sciences of the USSR.

He completed his studies at Tomsk Technological Institute (now Tomsk Polytechnic University) under Vladimir Obruchev and later served on the school's faculty.

Usov studied the geology of Siberia as well as adjacent regions in China and Mongolia and the gold producing regions of Kuznetsk Alatau and Transbaikal.

His most significant contributions to Russia were in his studies of the geological structure of the Kuznetsk Basin.

A small mountain, Mons Usov, in Mare Crisium on the moon is also named after him.