A short for Mary.

It derives from Malle and Molle, which were both also diminutive forms of the name.

Other forms of the name are: Maria, Mollie, Malia, Polly, Pollie, Mia, Maia, Miren, Mari, Miriam, Marianne, Mariette, Marion, Manon, Marica, Maja.

Famous bearers are Molly Ringwald, Molly Quinn, Molly Parker, Molly Bee, Molly Shannon, Molly Brown.

Molly is a popular name in Sweden, Northern Ireland, Ireland, and Scotland.