Girls hockey has risen to prominence in recent times, with the 1st team reaching the 2007 Ulster Senior Schoolgirls' Cup final in .

The team was coached by Dr. Michelle Rainey and featured future Ireland and Scottish internationals including 2018 Women's Hockey World Cup silver medallist, Zoe Wilson, who scored the winner, aged 14.

Goalkeeper Lucy Camlin went on to gain 25 caps as a Scottish International and has uniquely won both Senior Scottish and Irish League & Cup Doubles with Edinburgh club Watsonians and Ulster club Pegasus respectively [11][12][13][14] Uniform is compulsory at Ballyclare High School.

All pupils wear a blazer - black for boys and navy for girls - with the school logo emblazoned on a pocket on the left.

In Lower Sixth, pupils wear a tie that is mostly navy with intermittent, thin red stripes as well as a representation of the Ballyclare Mill which can be seen in the school's emblem.