Colonel March

{{Short description|Fictional detective}}

{{Use dmy dates|date=April 2022}}

Colonel March is a fictional detective created by American writer John Dickson Carr. He appeared in a number of short stories written in the 1930s and 1940s of "impossible crime" mysteries.{{cite book|last=Joshi|first=S. T.|title=John Dickson Carr: A Critical Study|publisher=Popular Press|year=1990|pages=76–77|isbn=9780879724771}} He was an official attached to Scotland Yard in the so-called Department of Queer Complaints.

Carr based March on Major John Street, MC, OBE{{Cite book|last=Evans|first=Curtis|title=Masters of the "Humdrum" Mystery: Cecil John Charles Street, Freeman Wills Crofts, Alfred Walter Stewart and the British Detective Novel, 1920-1961|publisher=McFarland & Company|year=2012|page=90|isbn=978-0786470242}} with whom he had co-written the novel Drop to His Death.{{cite book|last=Penzler (editor)|first=Otto|authorlink=Otto Penzler|title=The Black Lizard Big Book of Locked-Room Mysteries|publisher=Black Lizard|year=2014|page=101|isbn=978-0307743961}}

Colonel March was portrayed by Boris Karloff in the 1950s British TV series, Colonel March of Scotland Yard.