- The name "Rambo" is of unknown origin. It can be dated back to the 17th-century Swedish immigrant Peter Gunnarsson Rambo.
- "Rambo" is also the name of an old farm in Vestfold county, Norway ("Rambøe" 1664, "Ramboe" 1723) - and about 65 people in Norway have Rambo as a family name. The Norse form of the name might have been *Hrafnabú. The first element is then the genitive pluralis of hrafn m 'raven', and the last element is bú n 'farm'. The name was brought to the US by Norwegian settlers.
- "Rambo" become widely known after John Rambo, a fictional Vietnam War veteran and protagonist of the film series Rambo.
- Rhymes: -æmbəʊ
Rambo (plural Rambos)
- (figuratively) One who is reckless, disregards orders, uses violence to solve all problems, and bravely charges headlong into the teeth of the enemy.
- "Journal; The 'Rambo' Culture", New York Times, 11 May 1995, Frank Rich
- Gender Trials: Rambo Litigators and Mothering Paralegals, University of California Press, 1995, Jennifer Pierce
- "Rambo's Brothers Cruise Clogged Expressways", U.S. News and World Report, 10 August 1987, Ted Gest
- "Freeway Rambos", S.F. Examiner, 1987
- "Rambo's Boys: The Lure of the Violent Father", Vol.8 No.3, Track Two, December 1999, Center for Conflict Resolution, Roshila Nair
- Rambo and the Dalai Lama: The Compulsion to Win and Its Threat to Human Survival, SUNY Press, George Fellman