Ilia Alexeyevich Tkachenko is a Russian former competitive ice dancer. Skating for Russia with Ekaterina Riazanova, he became the 2010 Trophée Eric Bompard silver medalist, the 2012 Skate Canada International bronze medalist, and a three-time Russian national medalist. Competing with Isabella Tobias for Israel, he won four medals on the ISU Challenger Series.

Ekaterina Vladimirovna Riazanova is a Russian former competitive ice dancer. With former partner Ilia Tkachenko, she is the 2010 Trophée Eric Bompard silver medalist, the 2012 Skate Canada bronze medalist, and a three-time Russian national medalist.