The Irish Singles Chart was first published in 1962, and the first artist to top the chart at Christmas was Elvis Presley with "Return to Sender". The following year, Brendan Bowyer became the first Irish artist to claim top spot at Christmas with "No More". The last Irish artist to secure the number one at Christmas to date was Mario Rosenstock, who charted with a parody of "Leave Right Now" in 2005; Ed Sheeran, who is English by nationality but of Irish ancestry, achieved a Christmas number one in Ireland in 2017.
The supergroup Band Aid, created by Irishman Bob Geldof, is the only act to have been number one at Christmas three times, each time with "Do They Know It's Christmas?". Four more acts have held top spot twice: The Beatles, Queen (both times with "Bohemian Rhapsody"), the Spice Girls and Eminem. Many acts that have topped the Irish Singles Chart at Christmas have also topped the UK Singles Chart at the same time.
From 2006 to 2013, every winner of the Irish Christmas number one came from the winning contestant of that year's series of the British reality contest The X Factor. Mark Ronson and Bruno Mars broke this streak in 2014 with their single "Uptown Funk". Irish bands such as The Rubberbandits ("Horse Outside" in 2010) and The Saw Doctors ("Downtown" in 2011) have contested for the honor during this time frame, but both fell well short.
- Cannon, Eoghan. "People of Ireland, we haven't had a "Christmas" number one since 2004". RTE.ie. Retrieved 25 May 2019.
- White, Jack (6 December 2018). "Every Christmas Number 1 on the Official Irish Singles Char". Official Charts Company. Retrieved 25 May 2019.
- Muldoon, Molly (2010-12-25). The Rubberbandits lose out on Christmas number one to X factor winner. Irish Central. Retrieved 2010-12-25.
- Sligo bay (21 December 2011). "Cannonball hits Saw Docs' No 1 hope – Music, Entertainment". Independent.ie. Retrieved 2012-01-05.
- White, Jack (21 December 2018). "Ava Max dethrones Ariana Grande to claim Ireland's Christmas Number 1 single". Official Charts Company. Retrieved 22 December 2018.