Madlyn

Madlyn is a given name, and may refer to:


 * Madlyn Davis (c. 1899–?), American blues singer
 * Madlyn O'Hare (also Madalyn Murray O'Hair; 1919–1995), American atheist activist
 * Madlyn M. Kahr (1913–2004), American art historian, and educator
 * Madlyn Rhue (1935–2003), American film and television actress