Diarmuid O'Carroll

Diarmuid O'Carroll started his youth career with Home Farm^[3] before joining Celtic's Youth Academy, he had featured for Celtic's reserve side for several years,^[4] 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.^[5]

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^[6] One month later he signed a one-year deal with Airdrie United.^[7] 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.^[8]

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.^[3] In an Irn-Bru league cup match on 20 September 2011, O'Carroll scored a double hat trick^[9] Until this time, he played for amateur side Dollingstown to maintain his match fitness.

He signed for Cliftonville on 3 January 2012 [1] and scored on his debut at Leonidas [2] O'Carroll also worked as a youth coach for the club's academy as well as a consultant for the agency The Copius Group.^[10]

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'Carroll was also appointed manager of Crusaders Newtownabbey Strikers in April 2015 (left in January 2017).^[10] On the expiration of this contract, Diarmuid had won 4 back to back titles with 2 clubs and then O'Carroll decided to retire from football to focus on coaching.

On 23 November 2018, O'Carroll came out of retirement, signing a short-term deal at Dungannon Swifts.

O’Carroll has completed a number of coaching badges and has a long-term ambition of pursuing this area after he retires from playing. On 27 February 2019, he was appointed manager of Glentoran Women.^[11] He left the position in June 2019, to become the Director of Coaching for Downtown Las Vegas Soccer Club.^[12]

On 23 September 2019 he took over the role of coach to Motherwell FC's Under 18s. This was a post that had briefly been filled by Darren O’Dea who had moved on to coach the under 18s with Celtic.^[13]

On 7 June 2021, O'Carroll joined Morecambe as a first-team coach, joining Stephen Robinson after they had worked together at Motherwell.^[14] On 9 January 2022, O’Carroll took charge of Morecambe in a 3-1 FA Cup defeat to Tottenham Hotspur, after manager Stephen Robinson tested positive for COVID-19 on the eve of the match.^[15]

On 22 February 2022, O’Carroll was appointed as Robinson's assistant manager at St Mirren.^[16] On 13 March 2023, O’Carroll joined Michael O’Neill's backroom staff with the Northern Ireland national team as a senior coach, whilst remaining in his assistant manager role at St. Mirren.^[17]

O'Carroll has been capped at every youth level and under 21 for Ireland, but has never played for the Republic of Ireland at full international level.^[2]

O'Carroll started his charity work by running a half-marathon in aid of Suicide Awareness in June 2010 in Belfast and continued that in October of that year by running the Dublin City Marathon for the same cause.^{[citation needed]}

Cliftonville

• IFA Premiership (2): 2012–13, 2013–14
• Irish League Cup (2): 2012–13, 2013–14

Crusaders

• NIFL Premiership (2): 2014–15, 2015–16

• Diarmuid O'Carrol at Soccerbase