John "Lofty" Wiseman is a British author and survival consultant, and a former member of the Special Air Service, the British special forces unit.
In 1959, at the age of eighteen, Wiseman became the youngest person ever to pass selection for the SAS, joining from the Parachute Regiment, which he had joined a year earlier. He went on to serve in the SAS for 26 years, rising to the rank of Sergeant Major.
After leaving the SAS in 1985, his first book was The SAS Survival Handbook. Wiseman has since become a survival consultant, writing a number of other books on the subject, as well as appearing on television. When he provided survival training to the cast of the 1990 film Memphis Belle, his ability to make food out of unlikely materials inspired cast member Harry Connick Jr. to write Lofty's Roach Souffle.
Wiseman is also a member of the instructional team at Trueways Survival School. He was also the instructor for the selection/training phase for the show, Castaway 2000.