Duke Kahanamoku
- Born
- 24 August 1890 (77 years old)
- Passed away
- 22 January 1968
- Place of birth
- Honolulu, Hawaii, USA
- Gender
- Male
Duke Paoa Kahinu Mokoe Hulikohola Kahanamoku (August 24, 1890 – January 22, 1968) was a Hawaiian competition swimmer, lifeguard and actor, winning five Olympic medals during his athletic career and helping to popularize the sport of surfing in the early 20th century.
