Haldor Topsøe
# Haldor Topsøe

Haldor Topsøe may refer to:

* Haldor Topsøe (1842–1935), Danish chemist and crystallographer
* Haldor Topsøe (1913–2013), Danish engineer
* Haldor Topsøe (company), Danish catalysis company founded in 1940 by Haldor Topsøe (1913–2013)
