The name Corinna is a girl's name of Greek origin meaning "maiden". Corinna and discussed in our forums with posts like "Middle name for a First name!".
From the experts:
Delicate and gentle old-fashioned name, the kind found in early English poetry. While Corinna and the original Green Korinna are technically diminutives of the ancient Kore, now the popular Cora, this name will often be mistaken for other similar-sounding though unrelated names, such as Karenna. But it's pretty and is backed by more tradition than you'd guess.