Hel, in Norse mythology, the underworld (sometimes called Niflheim) and the goddess who ruled there. In early Germanic mythology, Hel was the goddess who ruled the majestic abode for the dead. Later, particularly after the advent of Christianity, Hel became a place of punishment, similar to the Christian hell.

HEL may refer to:

• Helsinki-Vantaa Airport
• Hardware Emulation Layer
• Hensall railway station, England; National Rail station code HEL
• High energy laser (weapon)
• Home equity loan