Hourihane came through the youth team of Sunderland,[6] and stayed with the Black Cats until 2010 when his contract expired. He was offered a new deal by Sunderland but chose to sign for his idol Roy Keane's Football League Championship side Ipswich Town, who had to offer compensation for the deal.[7][8] Hourihane failed to make an appearance for Ipswich in the 2010–11 season.
Plymouth Argyle
He signed for Football League Two side Plymouth Argyle on 30 July 2011 on a free transfer after being released by Ipswich and impressing on trial.[9] He made his professional debut on 6 August 2011, in the opening day draw with Shrewsbury Town at the New Meadow.[10] On 15 October, Hourihane scored his first goal for Plymouth in a 3–2 win over Dagenham & Redbridge.[11] He became the club's captain during the 2012–13 season following the departure of Darren Purse to Port Vale and signed a new two-year contract in May 2013. Hourihane impressed for Plymouth in the 2013–14 season, starting 53 games and missing only one match all season because of suspension, scoring nine goals in the process.
Barnsley
Hourihane joined Barnsley on 23 June 2014 for a fee of £250,000, signing a three-year contract with the Tykes.[12] He earned the League One Player of the Month award for August 2014, after making an impressive start to his Barnsley career. Hourihane became captain of the club in December 2015.[13]
Hourihane and Barnsley had a highly successful start to life in the Championship, winning five out of their first seven games, including 4–0 wins against Rotherham[16] and Wolverhampton Wanderers,[17] and with Hourihane scoring three goals in these first seven games and assisting a further five. He went on to win the Championship Player of the Month for August 2016.[18]
Despite speculation linking Hourihane with Aston Villa on 21 January 2017, Hourihane captained Barnsley to a 3–2 victory against Leeds United with Hourihane scoring the match winning goal with a free-kick.[19]
On 26 January 2017, it was confirmed that Hourihane had left Barnsley to sign for Championship rivals Aston Villa for an undisclosed fee. Both Hourihane and Barnsley released a statement, the player thanking the fans and commenting that Barnsley "will always have a special place in my heart".[20]
Aston Villa
On 26 January 2017, Hourihane joined Aston Villa on a three-and-a-half-year deal.[21] Hourihane made 17 appearances as Villa finished the season in 13th place, scoring his first Villa goal against Bristol City in February. He scored his first hat trick for the club in a 4–2 victory at home against Norwich City in August 2017.[22]
Hourihane signed a new three-year deal in the summer of 2019 as a reward for helping the side win promotion to the Premier League.[23] On 5 October 2019, he scored his first Premier League goal in a 5–1 away victory over Norwich City – which meant that he had scored in all four levels of the English football league system.[24]
On 20 January 2021, Hourihane joined Championship side Swansea City on loan for the remainder of the 2020–21 season.[25] On 23 January 2021, Hourihane made his Swansea debut, in a 5–1 FA Cup victory over Nottingham Forest with a performance that was described as "excellent" by Swansea manager Steve Cooper.[26] In his second appearance, and his league debut, he scored his first goal for the club in a 1–1 draw with Brentford on 27 January 2021.[27]
Ahead of the 2023–24 season, Hourihane was named the captain of Derby County on 3 August 2023, after winning the vote from the first-team squad.[33] There were mixed fortunes for Hourihane at the start of his first season as captain with a low-light being Derby's 1–0 loss at Shrewsbury Town on 21 October 2023, where he scored the decisive own goal from defending a cross.[34] At the end of the match, Houirhane went over to the angry visiting fans saying he was "trying his best",[35] he also stated frustration in the dressing room over poor performances.[36]
This game though would be prove to be a turning point Derby's season, as form started to improve and Derby started to climb up the table, with Hourihane scoring winning goals in two matches, 3–2 against Burton Albion on 15 January 2024[37] and 2–1 to Reading on 12 March 2024.[38] as Derby moved to second in the league table, Hourihane stated that getting promotion for Derby would be the "fairytale story".[39]
For the final six games of the season, Hourihane lost his place in the starting 11 as Nathaniel Mendez-Laing became on the pitch captain for the team during the promotion run-in.[40] On 27 April 2024, Derby secured automatic promotion to the Championship as runners-up of League One and Hourihane lifted the promotion trophy,[41][42] he made 47 appearances for Derby during the season, with six goals. In the league he made 41 appearances and scored five times.
On 18 May 2024, it was announced that Hourihane would leave Derby at the end of his contract on 30 June 2024, after 98 appearances and 13 goals over two seasons.[43]
Return to Barnsley
Hourihane returned to Barnsley on 6 June 2024 as a player-coach, on what was described as a 'multi-year deal'.[44] On 20 December, he retired from playing, taking up the role of assistant head coach at the club.[45]
International career
On 28 March 2017, Hourihane made his senior international debut, starting in a 1–0 friendly defeat against Iceland at the Aviva Stadium.[46] Hourihane won his second cap in a friendly against Mexico on 2 June 2017. On 26 March 2019, Hourihane scored his first senior international goal in a 1–0 win over Georgia at the Aviva Stadium.[47]
The Republic of Ireland's first home match in Euro 2020 qualifying received additional coverage due to a protest against the former CEO of the Football Association of Ireland (FAI), John Delaney. A portion of the Republic of Ireland supporters threw tennis balls on the pitch during the 33rd minute to express their discontent at Delaney remaining part of the FAI hierarchy.[48]
Coaching career
In 2020, Hourihane started working towards his coaching qualifications. In June 2023, he announced that he would be joining the Aston Villa Academy in September as a coach for the Under-16s team, alongside playing for Derby.[49]
In June 2024, it was announced on his return to Barnsley that he would combine his playing role with that of first team coach, linking up with head coach Darrell Clarke and existing first team coach Martin Devaney.[45]