Ole Daniel Enersen

Ole Daniel Enersen (born March 14, 1943 in Oslo, Norway) is a Norwegian climber, photographer, journalist, writer, and medical historian.

In 1965 he made the first ascent of the Trollveggen mountain in Romsdalen, Norway, along with Leif Normann Petterson, Odd Eliassen and Jon Teigland.

In 2000 he published a novel in the fantasy genre, titled Dragen som elsket meg ("The dragon that loved me").

He publishes and maintains Who Named It?, a large online dictionary of medical eponyms.