NGC 3021 is a spiral galaxy in the northern constellation of Leo Minor.

It is about 93 million light-years away from Earth,[4] and is receding with a heliocentric radial velocity of 1,537±4 km/s.

[4] This galaxy was discovered December 7, 1785 by Anglo-German astronomer William Herschel.

[7] The morphological classification of NGC 3021 is SA(rs)bc,[5] which indicates a spiral galaxy with no central bar (SA), an incomplete inner ring structure (rs), and moderate to loosely wound spiral arms (bc).

This galaxy was also used to help refine the measurement of the Hubble constant.