Baldr, Balder or Baldur is a Norse god.

Balder or Baldr may also refer to:

People Balder (surname) Balder Tomasberg (1897–1919), Estonian artist

Places Balderfonna, a glacier in Svalbard, Norway Balder Formation, a geological formation in the North Sea off Great Britain Balder Point, a headland in Antarctica Mount Baldr, Baffin Island, Canada Mount Baldr (Antarctica), Asgard range, Antarctica River Balder, in County Durham, England

Plants Polistes balder, a species of paper wasp Ulmus × hollandica 'Balder', an elm cultivar

Vehicles Balder (roller coaster), in Sweden Balder Viking or CCGS Jean Goodwill, an icebreaking anchor handling tug supply vessel converted to a medium class icebreaker DCV Balder, a 1978 deepwater construction vessel MS Balder Sten or MS Phocine, a ferry built in 1985

Fiction Balder (character), a Marvel Comics character Baldr video game series, including Baldr Force, Baldr Bullet and Baldr Sky Baldur, a character in the 2018 video game God of War

See also Baldur (disambiguation) Baldur (given name), the origin of the name