Ernest A. Michael is an American mathematician who is best known for the Michael selection theorem, which he proved in (Michael 1956). He received his Ph.D. from the University of Chicago in 1951. He wrote his dissertation on "Locally m-convex algebras" under the supervision of Irving Segal. He had 5 doctoral students and 16 doctoral descendants. He wrote over 100 papers, mostly in the area of functional analysis.
Michael is also known in topology for the Michael line, a paracompact space whose product with the topological space of the irrational numbers is not normal.