List of number-one singles of 2017 (Ireland)

The Irish Singles Chart ranks the best-performing singles in Ireland, as compiled by the Official Charts Company on behalf of the Irish Recorded Music Association.^[1]

Issue date	Song	Artist(s)	Reference
6 January	"Rockabye"	Clean Bandit featuring Sean Paul and Anne-Marie	^[2]
13 January	"Shape of You"	Ed Sheeran	^[3]
20 January			^[4]
27 January			^[5]
3 February			^[6]
10 February			^[7]
17 February			^[8]
24 February			^[9]
3 March			^[10]
10 March	"Galway Girl"		^[11]
17 March	"Galway Girl"		^[12]
24 March	"Shape of You"		^[13]
31 March			^[14]
7 April			^[15]
14 April			^[16]
21 April			^[17]
28 April			^[18]
5 May	"Despacito"	Luis Fonsi and Daddy Yankee featuring Justin Bieber	^[19]
12 May			^[20]
19 May			^[21]
26 May			^[22]
2 June			^[23]
9 June			^[24]
16 June			^[25]
23 June			^[26]
30 June			^[27]
7 July			^[28]
14 July			^[29]
21 July			^[30]
28 July			^[31]
4 August			^[32]
11 August			^[33]
18 August	"New Rules"	Dua Lipa	^[34]
25 August	"New Rules"	Dua Lipa	^[35]
1 September	"Look What You Made Me Do"	Taylor Swift	^[36]
8 September	"New Rules"	Dua Lipa	^[37]
15 September			^[38]
22 September			^[39]
29 September			^[40]
6 October			^[41]
13 October			^[42]
20 October	"Rockstar"	Post Malone featuring 21 Savage	^[43]
27 October	"Rockstar"	Post Malone featuring 21 Savage	^[44]
3 November	"Havana"	Camila Cabello featuring Young Thug	^[45]
10 November			^[46]
17 November			^[47]
24 November			^[48]
1 December			^[49]
8 December	"Perfect"	Ed Sheeran	^[50]
15 December			^[51]
22 December			^[52]
29 December			^[53]^[54]

Number-one artists