List of number-one singles of 2015 (Australia)

Its data, published by the Australian Recording Industry Association, is based collectively on each single's weekly physical and digital sales.

[2] In 2015, nineteen singles claimed the top spot, including Mark Ronson's "Uptown Funk", which started its peak position in 2014, and 23 acts achieved their first number-one single in Australia: Ronson, OMI, Felix Jaehn, Ellie Goulding, LunchMoney Lewis, Major Lazer, DJ Snake, MØ, Wiz Khalifa, Charlie Puth, Grace, G-Eazy, Kendrick Lamar, Conrad Sewell, Lost Frequencies, One Direction, Calvin Harris, Disciples, Justin Bieber, Eric Nally, Melle Mel, Kool Moe Dee and Grandmaster Caz.

Ellie Goulding's "Love Me Like You Do", Meghan Trainor and John Legend's "Like I'm Gonna Lose You", Justin Bieber's "What Do You Mean?

", and Macklemore & Ryan Lewis' "Downtown" shared the title of second longest-running number-one single of 2015, each spending four weeks on the top.

Taylor Swift's "Bad Blood" featuring Kendrick Lamar topped the charts for three consecutive weeks, making it Lamar's first single to top the chart.

Wiz Khalifa earned his first number-one single, as did featured singer Charlie Puth , for " See You Again ", topping the chart for six consecutive weeks to share the title of the year's longest-running number-one. [ 1 ]
Adele 's " Hello " also topped the chart for six consecutive weeks, becoming her second number-one after 2011's " Someone Like You ". [ 3 ]
Justin Bieber achieved his first two number-one singles in late 2015: " What Do You Mean? " [ 4 ] and " Love Yourself ", [ 5 ] with four and three weeks at number-one respectively, Bieber was the year's longest-topping artist.
" Love Me Like You Do " was Ellie Goulding 's first number-one, topping the chart for four consecutive weeks. [ 6 ]