Michael Duffy

Derry City

Duffy is a product of the Derry City youth team and made his first appearance for the senior team at Richmond Park on 3 September 2012 as a second-half substitute in a 3–0 defeat to St Patrick's Athletic. Duffy scored his first league goal in the 1–0 win away to Shelbourne on 8 June 2013. As a 19-year-old Duffy scored against Aberystwyth Town and Shakhtyor Soligorsk in the Europa League and netted a hat-trick in July on his 20th birthday in a league match against UCD. In October 2014 it was reported that he had signed a two-year contract extension with the club.

Celtic

In February 2015 he was transferred to Scottish club Celtic. Duffy has not played in the first team for Celtic but impressed in the Development squad. In July 2015, he was loaned to Alloa Athletic on a six-month deal. At the start of 2016, Duffy was reported to be extending his stay at Alloa until the end of the 2015–16 season. On 27 February 2016, Duffy scored his first goal for Alloa in a 3–1 home loss to Livingston. Duffy went on to score the only goal in a 1–0 win against Hibs and was also on target in a 1–1 draw with Rangers. Duffy was named as Alloa Advertiser Player of the Year. On 30 June 2016, Duffy moved on loan to Dundee.

Dundalk

Duffy signed for League of Ireland Premier Division champions Dundalk in January 2017. He was part of the team that won the League of Ireland Cup in September, but he missed the crucial penalty in their shoot-out defeat to Cork City in…

On the 26 August 2018 it was reported that he intended to make the switch from playing for Northern Ireland to the Republic of Ireland. Michael Duffy was called up to the Home-Based Republic of Ireland under-18 by Paul Doolin on 1 February 2012 for a friendly game against Wales. On 15 February, he played the entire game in a 2–1 defeat at Ferrycarrig Park, Wexford. Duffy has since represented Northern Ireland at under-19 and under-21 level. He made his debut for the under-21 team on 9 September 2014 in a 4–1 defeat against Serbia at Shamrock Park, Portadown. On 24 August 2016 Duffy received his first call up to the senior Northern Ireland squad by manager Michael O'Neill. In August 2018 Duffy stated his intention of playing for the Republic of Ireland. In November 2020, Duffy's former manager Stephen Kenny revealed that Duffy would have made his most recent Republic of Ireland senior squad, but his international clearance had still not come through despite an 18 month wait. On 6 February 2021, Duffy's transfer of eligibility from Northern Ireland to the Republic of Ireland was officially approved by FIFA after a 2 year wait.

As of match played on 14 September 2026

Club

Dundalk

League of Ireland Premier Division (2): 2018, 2019 FAI Cup (2): 2018, 2020 League of Ireland Cup (2): 2017, 2019 President of Ireland's Cup (2): 2019, 2021 Derry City

FAI Cup (2): 2012, 2022 President of Ireland's Cup (2): 2023, 2026

Individual

PFAI Players' Player of the Year (2): 2018, 2025 League of Ireland Player of the Month (5): April 2018, August 2018, September 2019, June 2025, February 2026 PFAI Premier Division Team of the Year (5): 2018, 2019, 2020, 2024, 2025