John Luther Zimmerman IV (born November 26, 1973) is an American professional pair skater and coach. With skating partner Kyoko Ina, he is the 2002 World bronze medalist and a three-time U.S. national champion. They also competed at the 2002 Olympics and won the bronze medal. He briefly partnered with Brie Teaboldt for the 1994-95 season. Then he paired with Stephanie Stiegler from 1995 through 1998, and won the bronze medal at the 1997 U.S. Figure Skating Championships while being coached by Peter Oppegard. Their partnership ended in 1998 due to injuries.