Mary Lou (née Miller) Cowlishaw (February 20, 1932 – June 23, 2010) was an American journalist and politician.
Born in Rockford, Illinois, Cowlishaw received her bachelor's degree in journalism from University of Illinois at Urbana–Champaign and did graduate work at Northwestern University.
She then worked on the editorial board of the Naperville Sun newspaper.
Cowlishaw served on the Naperville, Illinois Board of Education from 1972 to 1983 and was a Republican.
This article about a Member of the Illinois House of Representatives is a stub.