Hel Peninsula (listen (help·info); Polish: Mierzeja Helska; Kashubian: Hélskô Sztremlëzna; German: Halbinsel Hela or Putziger Nehrung) is a 35-km-long sand bar peninsula in northern Poland separating the Bay of Puck from the open Baltic Sea. It is located in Puck County of the Pomeranian Voivodeship.

Military importance
During an episode of the cartoon Metalocalypse, members of the band Dethklok perform a concert near the Hel Peninsula.