Dion O' Cuinneagain is a former rugby union player who represented both South Africa and Ireland. Since retiring as a rugby player, O' Cuinneagain has worked as a doctor and as a rugby coach.
O' Cuinneagain played rugby at various levels with University of Cape Town and then Western Province where his teammates included, among others, Tiaan Strauss, Corne Krige and Bobby Skinstad. However his career was initially hindered by a serious hip injury and in 1997 he left South Africa and moved to England where he joined Sale Sharks. Then in 1999 he switched to playing for Ballymena RFC and Ulster. He made five appearances for the latter in the Heineken Cup . Injuries continued to hinder O'Cuinneagain's career and in 1999 he suffered two shoulder injuries and a broken wrist. In 2000 he decided to return to South Africa to complete his medical studies. However, in 2001 he made a brief comeback when he agreed to help out an injury depleted Munster. On 13 April 2001 he played in a 24–22 win against a Rest of Ireland XV at Thomond Park before making a late appearance as a replacement against Stade Français in the Heineken Cup semi-final defeat on 22 April.
O' Cuinneagain first played for Ireland at A level and on 3 April 1998 played against England A in a 40–30 away defeat. Between 1998 and 2000 he made 19 full appearances and scored one try for the senior Ireland team. He made his senior international debut in a 37–13 defeat against South Africa on 13 June 1998. He played in all four games during the 1999 Five Nations Championship and then captained Ireland on both a tour of Australia and during the 1999 Rugby World Cup. He scored his one and only try for Ireland on 15 October 1999 in a World Cup game against Romania. He made his final appearance for Ireland in a 60–13 win against Italy at Lansdowne Road on 2 March 2000.
Later career
After retiring as a rugby player, O' Cuinneagain returned to Cape Town to work as a doctor. He has since worked for several institutes, including the Sports Science Orthopaedic Clinic at the Sport Science Institute of South Africa. He has also worked as a general practitioner in Tokai, Cape Town. He remains actively involved in rugby and has coached and / or managed the South Africa Sevens and rugby teams at the University of Cape Town