John Lysak (born August 16, 1914) is an American canoeist who competed in the Olympic Games in 1936 in Berlin.
Born in New Jersey but raised in an orphanage in New York, he competed in the 1936 Olympics in Men's Folding Kayak Doubles, 10 kilometres, finishing seventh.
After a stint in the United States Marine Corps during World War II, Lysak attended Springfield College and worked as a painting contractor until the age of 62.
He is the San Francisco Bay Area's oldest living Olympian.