Marion Holland (July 17, 1908 – April 6, 1989) was an American children's book writer and illustrator from Washington, DC.
Holland's best-known books were A Big Ball of String; No Children, No Pets; Billy Had a System; and The Secret Horse.
A Big Ball of String (1958), which sold more than a million copies, was one of the six original Beginner Books published by Random House, along with The Cat in the Hat by Dr.