Lorentz Eldjarn (23 March 1920 – 11 February 2007) was a Norwegian biochemist and medical doctor.

Lorentz Eldjarn was born on 23 March 1920 in Måsøy Municipality in Finnmark, Norway,[1] later moving to Haslum.

He studied medicine at the University of Oslo and was associated with the Norwegian Radium Hospital.

He was a pioneer in the development of diagnostic methods and the use of clinical / chemical laboratories.

[4] In 1970 he was awarded the Fridtjof Nansen Prize for Outstanding Research,[1] and in 1976 the Anders Jahre's Award for Medical Research (1976)[5] He died on 11 February 2007 in Bærum Municipality in Akershus county.