Liam McCarthy and John D. O'Callaghan participant of European Union Contest for Young Scientists
Liam McCarthy (born 1995/96) and John D. O'Callaghan (born 1994/95) are Irish students from Kinsale, County Cork. They were the winners of the 45th Young Scientist and Technology Exhibition in 2009 at the ages of thirteen and fourteen respectively. Their win meant that their school, Kinsale Community School, became the first school in the country to be attended by multiple Young Scientist and Technology Exhibition winners after their fellow student Aisling Judge won the same award in 2006. McCarthy and O'Callaghan went on to be named EU Young Scientists of the Year in September 2009.