Donald Rumbelow (born 1940) is a British former City of London Police officer, crime historian, and former curator of the City of London Police's Crime Museum. He has twice served as chairman of the Crime Writers' Association.
Rumbelow currently acts as a London Tourist Board Blue Badged guide for the Jack the Ripper Walk, a walking tour in London that visits the locations associated with the crimes. He has appeared in several television documentaries examining the subject. In 2021, he was a regular contributor to Railway Murders.
In addition to his work on Jack the Ripper, he has also produced books and lectures on other aspects of London's crime history.
Rumbelow is married and has two children.