Leif Holger Larsen (27 January 1954 – 8 May 2015) was a Norwegian diplomat.

He was born in Stavanger, and was a cand.polit. by education. He started working for the Norwegian Ministry of Foreign Affairs in 1984. He was a subdirector in the Ministry from 2000, councillor-minister at the Norwegian NATO delegation from 2001 and head of department in the Ministry of Foreign Affairs from 2005. In 2009 he was appointed as a head teacher at the Norwegian Defence University College.

In 2011 he started serving in South Asia, first as special representative for the Ministry of Foreign Affairs to Afghanistan and Pakistan.[1] He had previously been present during the 2008 Kabul Serena Hotel attack, which claimed the life of a Norwegian journalist, but survived. Larsen served as the Norwegian ambassador to Pakistan from 2014 until he died in a helicopter crash on 8 May 2015 in Gilgit, Pakistan.