The name Jenny is a girl's name . Jenny and is often added to lists like Girls' Names That End in Y and discussed in our forums with posts like "Quintuplet Game-GIRLS".
From the experts:
At the height of the Jennifer craze, many parents were cutting straight to the nickname and putting Jenny on the birth certificate. But now that Jennifer is the mom rather than the daughter, Jenny, which has been somewhat replaced by Jenna, has faded as well.