John Luther Zimmerman IV 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. Zimmerman was suspended by the United States Center for SafeSport in March 2021 for a two-year period.

Kyoko Ina is an American figure skater. With partner John Zimmerman, she is the 2002 World bronze medalist and a three-time (2000–2002) U.S. national champion. The pair also competed at the 2002 Winter Olympics. With previous partner Jason Dungjen, Ina was a two-time U.S. champion and competed at the 1994 and 1998 Olympics.