st. cronan's has both gaelic football and hurling teams which compete against other schools in the wicklow area. the school's gaelic football team have been county champions on several occasions, and have also won the coughlin cup on several occasions. the school's team colours are blue, yellow, and white to match the school's uniform. prior to the year 2000, the school's colours were red and white; this matched the colour of the previous school uniform.