List of Gaon Digital Chart number ones of 2017

Managed by the domestic Ministry of Culture, Sports and Tourism (MCST), its data is compiled by the Korea Music Content Industry Association and published by the Gaon Music Chart.

[1][2] The ranking is based collectively on each single's download sales, stream count, and background music use.

[2] In mid-2008, the Recording Industry Association of Korea ceased publishing music sales data.

[3] Gaon provides weekly (listed from Sunday to Saturday), monthly and yearly charts.

Below is a list of singles that topped the weekly and monthly charts.

Ailee scored the best-performing song of 2017 with " I Will Go to You Like the First Snow "