Keith James "Nick" Thometz (born September 16, 1963, in Minneapolis, Minnesota) is an American former ice speed-skater.

For most of 1987 he held the World record for men's 500 meter speed skating.

He also won a silver medal at the 1987 World Sprint Speed Skating Championships for Men.

He competed in the Winter Olympic Games three times, but never medaled.

This biographical article about a speed skater from the United States is a stub.