Jan Mårtenson

Jan Martenson
Martenson in 2012
Born
Jan Per Gösta Mårtenson

(1933-02-14)14 February 1933
Uppsala, Sweden
Died12 January 2026(2026-01-12) (aged 92)
Alma materUppsala University
OccupationsDiplomat, writer
Years active1960–2001
Spouse
Ingrid Giertz
(m. 1967)

Jan Per Gösta Mårtenson (14 February 1933 – 12 January 2026) was a Swedish diplomat who was also known as the author of some 50 Swedish crime novels.