John Siman

John O'Connell Siman (born October 7, 1952, in Pasadena, California) is an American former water polo player who competed for California State University, Fullerton and participated in the 1984 Summer Olympics, winning a team silver medal in water polo. He coached water polo and swimming for over twenty years at Buena High School, and was inducted into the USA Water Polo Hall of Fame in 1989. In 1989, he was inducted into the USA Water Polo Hall of Fame.

Siman was born October 7, 1952, in Pasadena and attended Pasadena's John Muir High School, competing in swimming and water polo from 1969-1973, though much of his more competitive play may have been with club teams.

Siman qualified to play water polo for the 1980 U.S. Olympic team, but the U.S. did not participate in the 1980 Moscow Olympics due to a U.S. boycott.

1984 Los Angeles Olympic silver medal Siman qualified for the 1984 U.S. Olympic team, and played in the 1984 Olympic Men's water polo team competition as the team's oldest member under former 1952 Olympian, and International Swimming Hall of Fame inductee, Olympic Head Coach Monte Nitzkowski. In the preliminary rounds of water polo at the 1984 Los Angeles Olympics, Yugoslavia and the United States won their initial three games. In the final round of play, Yugoslavia and the U.S. team played each other to decide the gold and silver medal winners. The U.S. team held a 5-2 lead late into the later part of quarter three, but failed to add more points, and Yugoslavia rebounded to tie the final match 5-5. With more overall goals, known as goal differential, Yugoslavia took the gold, the U.S. team the silver, West Germany the bronze, and Spain managed a finish in fourth place.

Coaching As early as 1991 and at least through 2016, Siman coached the varsity swim and water polo teams for Ventura, California's, Buena High School. He coached his son Scott, as a Senior on the Water Polo team in 2005.