Edward Ryon Makuahanai Aikau (Kahului, Hawaii, May 4, 1946 – March 17, 1978) was a Hawaiian lifeguard and surfer.
As the first lifeguard at Waimea Bay on the island of Oahu, he saved over 500 people and became famous for surfing the big Hawaiian surf, winning several awards including the 1977 Duke Kahanamoku Invitational Surfing Championship.