Denys Poyatsyka (Ukrainian: Денис Пояцика; born April 29, 1985, in Krementschuk, Poltava Oblast) is a Ukrainian amateur boxer, best known for winning the European title at 201 lbs in 2006.

In 2004, he moved up to light heavy from middleweight, although he didn't win the national title.

In 2006 he moved up to heavyweight with a limit of 201 lbs and won the national title.

Here he surprised everyone by not only winning the whole tournament but by displaying tremendous punching power, even managing to stop four out of five foes including Elchin Alizade and usually durable Russian top favorite Roman Romanchuk.

He retired in 2016 and started working as a youth boxing coach in Kremenchuk.