Meaning unknown. In Greek mythology Helle was the daughter of Athamus and Nephele. She and her brother Phrixus escaped sacrifice by fleeing on the back of a golden ram, but during their flight she fell off and drowned in the strait that connects the Aegean Sea with the Sea of Marmara, which was thereafter called the Hellespont ("the sea of Helle").
There were no related names found for Helle (2).