Iulian Serhiyovych Boiko (; born 22 September 2005) is a Ukrainian professional snooker player.
In May 2019, Boiko registered his first official century break in a 4âÂÂ3 defeat against Billy Joe Castle in the second event of the 2019 Q School.
In January 2020, Boiko finished as runner-up in the WSF Open, as a result, he was awarded a two-year card on the World Snooker Tour for the 2020âÂÂ21 and 2021âÂÂ22. As a 14 year old, he became the youngest ever professional player. In March 2020, Boiko defeated Darren Morgan, a former professional player, by 5âÂÂ3 in the final to become the EBSA European 6-Reds champion for the first time. Later in 2020, he participated at the qualifying stages of the World Championship, the youngest player to do so, but he was eliminated by Thor Chuan Leong in the first qualifying round, losing 6âÂÂ3.
On 4 March 2021, Boiko won his first professional match in Gibraltar Open against Fergal O'Brien, winning 4âÂÂ3.
Boiko is the son of Serhii Boiko, who is responsible for creating and overseeing the Ukrainian Snooker Federation.