This is a list of singles which have reached number one on the Irish Singles Chart in 1977.
Week ending Song ArtistRef. 1 January "When a Child Is Born" Johnny Mathis 8 January "If You Leave Me Now" Chicago 15 January 22 January "Living Next Door to Alice" Smokie 29 January 5 February "Don't Cry for Me Argentina" Julie Covington 12 February 19 February 26 February "When I Need You" Leo Sayer 5 March 12 March 19 March "Chanson D'Amour" The Manhattan Transfer 26 March 2 April 9 April "Knowing Me, Knowing You" ABBA 16 April 23 April 30 April 7 May 14 May "It's Nice To Be In Love Again" The Swarbriggs 21 May "Have I the Right?" Dead End Kids 28 May 4 June 11 June "Big Tom is Still the King" Susan McCann 18 June 25 June "Back Home" Dickie Rock 2 July 9 July 16 July 23 July "Sam" Olivia Newton-John 30 July 6 August "Benjy Wrapped his Tractor Round the Old Oak Tree" Brendan Grace 13 August 20 August "Daddy's Little Girl" Brendan Quinn 27 August "Angelo" Brotherhood of Man 3 September "I Need You" Joe Dolan 10 September Way Down Elvis Presley 17 September "I Need You" Joe Dolan 24 September "Nobody Does It Better" Carly Simon 1 October "Way Down" Elvis Presley 8 October "Silver Lady" David Soul 15 October 22 October 29 October 5 November "Yes Sir, I Can Boogie" Baccara 12 November "Calling Occupants of Interplanetary Craft" The Carpenters 19 November 26 November "Belfast" Boney M. 3 December "Rockin' All Over the World" Status Quo 10 December "Mull of Kintyre" Wings 17 December 24 December 31 December
24 Number Ones Most weeks at No.1 (artist): ABBA (5) Most weeks at No.1 (song): "Knowing Me, Knowing You" - ABBA (5) Most No.1s: all artists 1 Number One each
See also 1977 in music Irish Singles Chart List of artists who reached number one in Ireland
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