Jack O'Neill (March 27, 1923 – June 2, 2017) was an American businessman and surfer. In 1952 he founded the O'Neill brand while opening one of California's first surf shops in a garage on the Great Highway in San Francisco. He was known for creating the wetsuit, an average swimwear used by surfers. He was born in Denver, Colorado.
O'Neill died at the age of 94 on June 2, 2017 at his home in Santa Cruz, California from congestive heart failure.