Jay O'Brien, American bobsledder (born 1883)

Jay James O'Brien was an American bobsledder who competed in the late 1920s and early 1930s. He won two medals at the Winter Olympics with a gold in the four-man event at Lake Placid, New York, in 1932 and a silver in the five-man event at St. Moritz in 1928. At 48 years old, he was the oldest Olympic champion.