- Manny Pacquiao
- 40;215 year(s):day(s)
- United States (Las Vegas)
The oldest welterweight boxing world champion is Manny Pacquiao (Philippines, b. 17 December 1978), who claimed the WBA Welterweight title aged 40 years 215 days on 20 July 2019.
Pacquiao claimed the welterweight belt with a split-decision win over Keith Thurman at the MGM Grand Garden Arena in Las Vegas, Nevada, USA. He became the fifth-oldest male boxer at any weight to claim a world title.