Oleg Voiko (born March 25, 1980 in Kharkiv, Ukrainian SSR) is a Ukrainian ice dancer. With former partner Julia Golovina, he is the 2003 Ukrainian national champion. They competed at the 2002 Winter Olympics and the 2006 Winter Olympics, placing 21st and 23rd, respectively. Their highest placement at an ISU Championship was 15th at the 2003 and 2004 European Figure Skating Championships.
Voiko began skating at age three. Initially a singles skater, he first took up ice dancing at age nine, and then took time off from skating. In 1996, he teamed up with Kristina Kobaladze. They placed fourth at the 1999 World Junior Championships and fifth at the 2000 World Junior Championships. Their partnership ended in 2000 and he teamed up with Julia Golovina in the same year.
He briefly competed with Natalie Bos.