Ole Daniel Enersen is a Norwegian climber, photographer, journalist, writer, and medical historian.

In 1965 he made the first ascent of the Trollveggen

Troll Wall

The Troll Wall is part of the mountain massif Trolltindene in the Romsdalen valley, near Åndalsnes and Molde, on the Norwegian west coast. Trollveggen is part of the Reinheimen National Park in the municipality of Rauma in Møre og Romsdal county. The Troll Wall is the tallest vertical rock face...

 mountain in Romsdalen

Romsdal

Romsdal is the name of a traditional district in the Norwegian county Møre og Romsdal, located between Nordmøre and Sunnmøre. The district of Romsdal comprises Aukra, Fræna, Midsund, Molde, Nesset, Rauma, Sandøy, and Vestnes. It is named for the valley of Romsdalen, which covers part of Rauma.The...

, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

, 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.

Enersen is represented by the Norwegian photo agency Samfoto

Samfoto

Samfoto Picture Agency is located in Oslo, Norway. The agency represents a large number of Norwegian and Scandinavian freelance photographers. The stock photographs include more than 300 000 images, of which approximately 250 000 are accessible on the Internet Samfoto Picture Agency is located in...