Mary Ellen Solt, née Bottom (July 8, 1920, Gilmore City, Iowa – June 21, 2007) was an American concrete poet. Her work was most notably poems in the shape of flowers such as "Forsythia", "Lilac", and "Geranium". They were collected in Flowers in Concrete (1966).
With Willis Barnstone, she edited Concrete Poetry: A World View, which the New York Times said was "considered one of the major anthologies of the form".
She married Leo Frank Solt, who was a historian, with books on old and early modern English history and Puritanism. They both taught at Indiana University and she was also director of the Polish Studies Center.