Diarmuid O'Carroll (born 16 March 1987 in Killarney) is an Irish retired professional footballer, who is currently assistant manager at St Mirren. He has worked in various roles in football such as for the Irish Football Association as Club and Community Development Officer within the Football Development Department. Club career Diarmuid O'Carroll started his youth career with Home Farm before joining Celtic's Youth Academy, he had featured for Celtic's reserve side for several years, but did not play for the first team. In 2007, he had a loan spell with Ross County F.C. and, in July 2008, it was announced that O'Carroll had signed a one-year deal with English League Two side Morecambe. In the summer of 2009 O'Carroll had many trials, including one at Újpest FC, but he did not agree a deal with the Hungarian club. He played for Shamrock Rovers in their win over Hibernian F.C. in July but was not offered a contract One month later he signed a one-year deal with Airdrie United. Due to financial cutbacks at the club, he left in May 2010. O'Carroll then went on trial at Raith Rovers. He scored his first goal for Raith as a trialist away to Forfar Athletic in a pre-season friendly on 13 July 2010. On 30 July he signed for Icelandic side Valur where he also worked as a youth coach. In November 2010, after returning from Iceland O'Carroll signed a pre-contract agreement with Glenavon in Northern Ireland. He became eligible to play from January 2011. In an Irn-Bru league cup match on 20 September 2011, O'Carroll scored a double hat trick Until this time, he played for amateur side Dollingstown to maintain his match fitness. He signed for Cliftonville on 3 January 2012 and scored on his debut at Leonidas O'Caroll also worked as a youth coach for the club's academy as well as a consultant for the agency The Copius Group. Later career On 7 May 2014, O'Carroll was confirmed to have left Cliftonville after winning back to back league titles and league cups. He then joined Crusaders, signing a two-year pre-contract for the club. During his time at Crusaders as a semi-professional player, O'Caroll was also appointed manager of Crusaders Newtownabbey Strikers in April 2015 (left in January 2017). On the expiration of this contract, Diarmuid had won 4 back to back titles with 2 clubs and then O'Carroll decided to