Mary Louise

Mary Louise may refer to:


 * Mary Louise (name), a name (including a list of persons with the name)
 * Mary Louise (novel), a children's book by L. Frank Baum writing as Edith Van Dyne
 * USS Mary Louise (SP-356), a US navy ship in service in 1917
 * Mary Louise (actor), a child prodigy appearing in The Bird's Christmas Carol directed by Lule Warrenton
 * Mary Louise (horse), the 1937 winner of the Swedish Trotting Criterium