Einasto may refer to:

People

• Jaan Einasto (born 1929), Estonian astrophysicist

Astronomy

• Einasto Supercluster, a supercluster of galaxies, the most massive supercluster known in the Universe at the time of its discovery in 2023, named for Jaan Einasto
• 11577 Einasto, the asteroid Einasto, a main-belt asteroid, the 11577th asteroid discovered, named after Jaan Einasto

Other uses

• Einasto profile, a mathematical function that describes how the density of a stellar spherical system varies with distance from the center