Elly is a diminutive of names like Elizabeth, Ellen, and Eleanor. It's often chosen for its simplicity and easy pronunciation. In some cultures, it may also have associations with the word 'ella' meaning 'she' in Spanish. The name has gained popularity as a standalone choice due to its cute and friendly sound.
The name Elly appears to have had a resurgence in popularity for baby girls, with an equal number of births occurring in both 1977 and 2009, totaling ten in that period.