# Irish Film and Television Award for Best Supporting Actor

The Irish Film and Television Award for Best Supporting Actor was an award bestowed by the Irish Film & Television Academy celebrating outstanding performances by actors in supporting roles in films and television dramas. It was a joint category until 2005, where actors were nominated from films and television dramas for the same award. The 3rd Irish Film & Television Awards introduced the current separate categories: Irish Film & Television Award for Best Actor in a Supporting Role - Film and Irish Film and Television Award for Best Actor in a Supporting Role - Television.

## Winners and nominees
### 2003-2004

| Year | Winner | Film/Television Drama | Role |
| 2003 | David Wilmot | Intermission | Oscar |
| 2003 | Colin Farrell | Intermission | Lehiff |
| 2003 | Ciarán Hinds | Veronica Guerin | John Traynor |
| 2003 | Gerard McSorley | Veronica Guerin | John Gilligan |
| 2003 | Owen Roe | Any Time Now | Frank O'Halloran |
| 2004 | Peter O'Toole | Troy | Priam, King of Troy |
| 2004 | Colum Convey | Holy Cross | Gerry McClure |
| 2004 | Gary Lydon | The Clinic | Mr. Patrick Murray |
| 2004 | Ciarán Nolan | Man About Dog | Scud Murphy |
| 2004 | Jim Norton | Proof | Ronan Corcoran |

### Film
#### 2000s

| Year | Winner | Film | Role |
| 2005 | David Kelly | Charlie and the Chocolate Factory | Grandpa Joe |
| 2005 | Seán McGinley | On a Clear Day | Eddie |
| 2005 | Cillian Murphy | Batman Begins | Dr. Jonathan Crane / Scarecrow |
| 2005 | Tadgh Murphy | Boy Eats Girl | Diggs |
| 2006 | Liam Cunningham | The Wind That Shakes the Barley | Dan |
| 2006 | Pádraic Delaney | The Wind That Shakes the Barley | Teddy O'Donovan |
| 2006 | Gerard McSorley | Middletown | Bill Hunter |
| 2006 | Stephen Rea | Breakfast on Pluto | Bertie Vaughan |
| 2007 | Brendan Conroy | Kings | Git |
| 2007 | Donal O'Kelly | Kings | Jap Kavanagh |
| 2007 | Conor J. Ryan | Garage | David |
| 2007 | Don Wycherley | Speed Dating | Detective Noel Long |
| 2008 | Liam Cunningham | Hunger | Father Dominic Moran |
| 2008 | Stuart Graham | Hunger | Raymond Lohan |
| 2008 | Gerard McSorley | Anton | Detective Lynch |
| 2008 | Peter O'Toole | Dean Spanley | Fisk Senior (Horatio) |
| 2009 | Aidan Quinn | The Eclipse | Nicholas Holden |
| 2009 | Simon Delaney | Happy Ever Afters | Dessie |
| 2009 | Michael Fassbender | Fish Tank | Connor O'Reily |
| 2009 | Michael Gambon | Harry Potter and the Half-Blood Prince | Albus Dumbledore |

#### 2010s

| Year | Winner | Film | Role |
| 2010 | Pierce Brosnan | The Ghost | Adam Peter Bennett |
| 2010 | Colin Farrell | The Way Back | Valka |
| 2010 | Brendan Gleeson | Perrier's Bounty | Clifford |
| 2010 | Cillian Murphy | Inception | Robert Michael Fischer |
| 2011 | Chris O'Dowd | Bridesmaids | Officer Nathan Rhodes |
| 2011 | Liam Cunningham | The Guard | Francis Sheehy-Skeffington |
| 2011 | Brendan Gleeson | Albert Nobbs | Dr. Holloran |
| 2011 | Ciarán Hinds | The Debt | David Peretz |
| 2012 | Domhnall Gleeson | Anna Karenina | Konstantin "Kostya" Dmitrievich Levin |
| 2012 | Ciarán Hinds | The Woman in Black | Samuel "Sam" Daily |
| 2012 | Michael McElhatton | Death of a Superhero | James Clarke |
| 2012 | David Wilmot | Shadow Dancer | Kevin Mulville |
| 2013 | Michael Fassbender | 12 Years a Slave | Edwin Epps |
| 2013 | Colin Farrell | Saving Mr. Banks | |
| 2013 | Edward MacLiam | Run & Jump | |
| 2013 | Peter McDonald | The Stag | The Machine |
| 2014 | Domhnall Gleeson | Frank | Jon Burroughs |
| 2014 | Allen Leech | The Imitation Game | John Cairncross |
| 2014 | James Nesbitt | Gold | Frank McGunn |
| 2014 | Andrew Scott | Pride | Gethin Roberts |
| 2015 | Jack Reynor | Sing Street | Brendan Lalor |
| 2015 | Sean T. Ó Meallaigh | The Callback Queen | Daithí Carroll |
| 2015 | Domhnall Gleeson | Brooklyn | Jim Farrell |
| 2015 | Owen Roe | Pursuit | Mr. King |
| 2015 | Michael Smiley | My Name Is Emily | Robert Egan |
| 2016 | Jason O'Mara | The Siege of Jadotville | Company Sergeant Jack Prendergast |
| 2016 | Colin Farrell | Fantastic Beasts and Where to Find Them | Percival Graves |
| 2016 | Brendan Gleeson | Trespass Against Us | Colby Cutler |
| 2016 | Ciarán Hinds | Bleed for This | Angelo Pazienza |
| 2016 | Chris Walley | The Young Offenders | Jock Murphy |
| 2017 | Barry Keoghan | The Killing of a Sacred Deer | Martin Lang |
| 2017 | Jacob McCarthy | The Drummer and The Keeper | |
| 2017 | Andrew Scott | Handsome Devil | Dan Sherry |
| 2017 | Fionn Walton | Cardboard Gangsters | Dano |
| 2017 | Barry Ward | Maze | Gordon |
| 2018-2019 | David Wilmot | Ordinary Love | Peter |
| 2018-2019 | Lorcan Cranitch | The Dig | Sean McKenna |
| 2018-2019 | Dara Devaney | Arracht | Patsy |
| 2018-2019 | Barry Keoghan | Calm with Horses | Dymphna |
| 2018-2019 | Ian Lloyd Anderson | Dublin Oldschool | Daniel |
| 2018-2019 | Stephen Rea | Black '47 | Conneely |

#### 2020s

| Year | Winner | Film | Role |
| 2020 | Barry Ward | Dating Amber | Ian Cotter |
| 2020 | Brian Gleeson | Death of a Ladies' Man | Ben |
| 2020 | Colm Meaney | Pixie | Dermot O'Brien |
| 2020 | Conleth Hill | Herself | Aido |
| 2020 | Ned Dennehy | Undergods | Harry |
| 2021 | Ciarán Hinds | Belfast | Pop |
| 2021 | Jamie Dornan | Belfast | Pa |
| 2021 | Cillian Ó'Gairbhí | Foscadh | Dave |
| 2021 | Dean Quinn | Who We Love | Simon |
| 2021 | Tom Vaughan-Lawlor | The Bright Side | Andy |
| 2022 | Pierce Brosnan | Black Adam | Doctor Fate / Kent Nelson |
| 2022 | Colin Farrell | The Batman | Oswald Cobblepot / The Penguin |
| 2022 | Brendan Gleeson | The Banshees of Inisherin | Colm Doherty |
| 2022 | Barry Keoghan | The Banshees of Inisherin | Dominic Kearney |
| 2022 | Paul Mescal | God's Creatures | Brian O'Hara |
| 2022 | Andrew Scott | Catherine Called Birdy | Lord Rollo |
| 2023 | Paul Mescal | All of Us Strangers | Harry |
| Diarmuid Noyes | Double Blind | Ray |
| Chris Walley | Lies We Tell | Edward |
| Kenneth Branagh | Oppenheimer | Niels Bohr |
| Liam Carney | Sunlight | Iver |
| Lalor Roddy | That They May Face The Rising Sun | Patrick |

### Television Drama
#### 2000s

| Year | Winner | Television Drama | Role |
| 2005 | Garrett Lombard | Pure Mule | Scobie |
| 2005 | Gary Lydon | The Clinic | Mr. Patrick Murray |
| 2005 | John Lynch | The Baby War | Pierce O'Carroll |
| 2005 | Chris O'Dowd | The Clinic | Brendan Davenport |
| 2006 | Gary Lydon | The Clinic | Mr. Patrick Murray |
| 2006 | Liam Cunningham | Murphy's Law | Drew Johnstone |
| 2006 | Allen Leech | Legend | Willy |
| 2006 | Chris O'Dowd | Showbands | Mervin Mooney |
| 2007 | Nick Dunning | The Tudors | Thomas Boleyn, Earl of Wiltshire |
| 2007 | Leroy Harris | Prosperity | Conroy |
| 2007 | Eamonn Hunt | The Running Mate | Paudie Counihan |
| 2007 | Gary Lydon | The Clinic | Mr. Patrick Murray |
| 2008 | Peter O'Toole | The Tudors | Pope Paul III |
| 2008 | Michael Fassbender | The Devil's Whore | Thomas Rainsborough |
| 2008 | David Herlihy | The Clinic | Nurse Liam Smith |
| 2008 | John Kavanagh | George Gently | Doyle |
| 2009 | Stephen Rea | Father & Son | Augustine Flynn |
| 2009 | Declan Conlon | Fair City | Turlough Norris |
| 2009 | Diarmuid Noyes | Pure Mule – The Last Weekend | Dean |
| 2009 | Owen Roe | Val Falvey, TD | Pat Daly |

#### 2010s

| Year | Winner | Television Drama | Role |
| 2010 | Stephen Rea | Single Handed | Sean Doyle |
| 2010 | Brian Gleeson | Love/Hate | Hughie "Cueball" Power |
| 2010 | Seán McGinley | Wild Decembers | O'Dea |
| 2010 | Eamon Morrissey | Fair City | Cass Cassidy |
| 2011 | Tom Vaughan-Lawlor | Love/Hate | Nigel "Nidge" Delaney |
| 2011 | Brendan Coyle | Downton Abbey | Mr. Bates |
| 2011 | Aidan Gillen | Game of Thrones | Littlefinger |
| 2011 | Robert Sheehan | Misfits | Nathan Young |
| 2012 | Andrew Scott | Sherlock | Jim Moriarty |
| 2012 | Peter Coonan | Love/Hate | Fran Cooney |
| 2012 | Allen Leech | Downton Abbey | Tom Branson |
| 2012 | Chris O'Dowd | Moone Boy | Seán Caution Murphy |
| 2013 | Peter Coonan | Love/Hate | Fran Cooney |
| 2013 | Liam Cunningham | Game of Thrones | Davos Seaworth |
| 2013 | Aidan Gillen | Game of Thrones | Littlefinger |
| 2013 | Allen Leech | Downton Abbey | Tom Branson |
| 2014 | Stephen Rea | The Honourable Woman | Sir Hugh Hayden |
| 2014 | John Connors | Love/Hate | Patrick Ward |
| 2014 | Liam Cunningham | Game of Thrones | Davos Seaworth |
| 2014 | Andrew Scott | Sherlock | Jim Moriarty |
| 2015 | Moe Dunford | Vikings | Aethelwulf |
| 2015 | Ned Dennehy | Dickensian | Ebenezer Scrooge |
| 2015 | Liam Cunningham | Game of Thrones | Davos Seaworth |
| 2015 | Robert O'Mahoney | An Klondike | Jacob Hopkins |
| 2015 | Stephen Rea | War & Peace | Prince Vassily Kuragin |
| 2016 | Ned Dennehy | An Klondike | Captain Pat Galvin |
| 2016 | Liam Cunningham | Game of Thrones | Davos Seaworth |
| 2016 | Moe Dunford | Vikings | Aethelwulf |
| 2016 | Andrew Scott | The Hollow Crown | King Louis XI of France |
| 2016 | Robert Sheehan | Fortitude | Vladek Klimov |
| 2017 | Liam Cunningham | Game of Thrones | Davos Seaworth |
| 2017 | Moe Dunford | Vikings | Aethelwulf |
| 2017 | Aidan Gillen | Game of Thrones | Littlefinger |
| 2017 | Owen McDonnell | Paula | DI "Mac" McArthur |
| 2017 | Jason O'Mara | Marvel's Agents of S.H.I.E.L.D. | Jeffrey Mace / The Patriot |
| 2018-2019 | Mark O'Halloran | The Virtues | Craigy |
| 2018-2019 | Liam Cunningham | Game of Thrones | Davos Seaworth |
| 2018-2019 | Barry Keoghan | Chernobyl | Pavel Gremov |
| 2018-2019 | Owen McDonnell | Killing Eve | Niko Polastri |
| 2018-2019 | Cillian O’Gairbhi | Blood | Barry Flood |
| 2018-2019 | Tom Vaughan-Lawlor | Dublin Murders | Frank Mackey |

#### 2020s

| Year | Winner | Television Drama | Role |
| 2020 | Fionn O'Shea | Normal People | Jamie |
| 2020 | Desmond Eastwood | Normal People | Niall |
| 2020 | Éanna Hardwicke | Smother | Joe Ryan |
| 2020 | Colm Meaney | Gangs of London | Finn Wallace |
| 2020 | Andrew Scott | His Dark Materials | Colonel John Parry |
| 2021 | Ciarán Hinds | Kin | Eamon Cunningham |
| 2021 | Peter Coonan | Hidden Assets | Fionn Brannigan |
| 2021 | Owen McDonnell | Three Families | Mark Ryan |
| 2021 | Emmett J. Scanlan | Kin | Jimmy Kinsella |
| 2021 | Andrew Scott | The Pursuit of Love | Lord Merlin |
| 2022 | Moe Dunford | The Dry | Jack |
| 2022 | Brian Gleeson | Bad Sisters | Tom Claffin |
| 2022 | Ciarán Hinds | The Dry | Tom Sheridan |
| 2022 | Daryl McCormack | Bad Sisters | Matt Claffin |
| 2022 | Michael Smiley | Bad Sisters | Roger Muldoon |
| 2022 | Tommy Tiernan | Conversations with Friends | Dennis Flynn |
| 2023 | Richard Dormer | Blue Lights | Gerry Cliff |
| 2023 | Jared Harris | Foundation | Hari Seldon |
| 2023 | Aaron Monaghan | Hidden Assets | Sean Prender |
| 2023 | Aidan Gillen | Kin | Frank Kinsella |
| 2023 | Emmett J. Scanlan | Kin | Jimmy Kinsella |
| 2023 | Simon Delaney | The Woman in the Wall | Massey |