| Killian Heffernan | |
| Nickname: | "Top Shot" |
| Birth Date: | 10 July 2002 |
| Birth Place: | Dublin, Ireland |
| Hometown: | Kildare, Ireland |
| Since: | 2010 |
| Darts: | 26g Target Power Five Generation 3 |
| Laterality: | Right-handed |
| Music: | "Disco Inferno" by The Trammps |
| Bdo: | 2016–2020 |
| Pdc: | 2021– |
| Bdo World: | Runner Up: 2018 (Youth) |
| Tournament: | WDF Europe Youth Cup Team |
| Resultyears: | 2019 |
Killian Heffernan (born 10 July 2002) is an Irish professional darts player who plays in Professional Darts Corporation (PDC) events. He reached the final of the 2018 BDO World Youth Darts Championship.
In 2018 he reached the final BDO World Youth Darts Championship which took place at the Lakeside Country Club in Frimley Green. In September 2017, the Youth tournament was played down to the final two. The final took place on 11 January 2018, he faced Justin van Tergouw in the final, losing 3–1.
In 2019 he won the WDF Europe Cup Youth for Ireland, alongside Keane Barry, Damien Moore and Dylan Slevin. They beat the Netherlands in the final.
Heffernan quit the BDO in 2020 and played PDC Q-School in 2021[1] but failed to progress to the main round for a chance to earn a tour card.[2]