Paul Stader is an American pool and open water swimmer who won the Waikiki Roughwater Swim four times from 1976 to 1980 and was 2 seconds from winning it a fifth time. In the history of the Waikiki Roughwater Swim, beginning in 1970, there have been only a few swimmers who have placed first overall more than once. Less than a handful have won the race more than twice. Stadler has the most overall first place finishes in the 42-year history of the race. Although he no longer swims competitively he swims daily for exercise, paddles, and enjoys the beaches near his home in Haleiwa, Hawaii.
Stader was born and raised in California and visited Hawaii frequently in his childhood, and he learned to love the ocean. He credits his parents with teaching him to swim soon after he was born in 1959. He started age group swimming at age 9 and competed at the state and national levels throughout his swimming career. He swam for the UCLA men's varsity swim team.
Stader is inducted in the Hawaii Swimming Hall of Fame in the Class of 2012.