Halvor Heyerdahl Rasch is a Norwegian zoologist.

He was born in Eidsberg

Eidsberg

Eidsberg is a municipality in Østfold county, Norway. The administrative centre of the municipality is the town of Mysen. Neighboring municipalities are Rakkestad, Askim, Skiptvet, Trøgstad, and Marker in Østfold, and Aurskog-Høland in Akershus....

. He was a professor of zoology at the University of Oslo

University of Oslo

The University of Oslo , formerly The Royal Frederick University , is the oldest and largest university in Norway, situated in the Norwegian capital of Oslo. The university was founded in 1811 and was modelled after the recently established University of Berlin...

 from 1852 to 1874, having previously been lector since 1847.

An avid hunter and sportsman, he published the book Jagten i Norge (1845) as well as works about livestock, oyster culvitation and beekeeping

Beekeeping

Beekeeping is the maintenance of honey bee colonies, commonly in hives, by humans. A beekeeper keeps bees in order to collect honey and other products of the hive , to pollinate crops, or to produce bees for sale to other beekeepers...

. He was among the founders of the Centralforeningen for Udbredelse af Legemsøvelser og Vaabenbrug, a precursor to the Norwegian Confederation of Sports

Norwegian Olympic and Paralympic Committee and Confederation of Sports

The Norwegian Olympic and Paralympic Committee and Confederation of Sports is the umbrella organization for sport in Norway. It is the largest volunteering organization in Norway, with more than 2 million members, and 12000 sports clubs, in 19 region confederatons and 56 national federations...

, in 1861.

Rasch was decorated as a Knight of the Royal Norwegian Order of St. Olav in 1863.