# List of Gaon Digital Chart number ones of 2020

The Gaon Digital Chart is a chart that ranks the best-performing singles in South Korea. 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. The ranking is based collectively on each single's download sales, stream count, and background music use. In mid-2008, the Recording Industry Association of Korea ceased publishing music sales data. The MCST established a process to collect music sales in 2009, and began publishing its data with the introduction of the Gaon Music Chart the following February. With the creation of the Gaon Digital Chart, digital data for individual songs was provided in the country for the first time. 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.

## Weekly charts

Key :
| † | Indicates best-performing single of 2020 |
| Week ending date | Song | Artist(s) |
| January 4 | "Meteor" | Changmo |
| January 11 | "Meteor" | Changmo |
| January 18 | "Any Song" (아무노래) † | Zico |
| January 25 | "Any Song" (아무노래) † | Zico |
| February 1 | "Any Song" (아무노래) † | Zico |
| February 8 | "Any Song" (아무노래) † | Zico |
| February 15 | "Any Song" (아무노래) † | Zico |
| February 22 | "Give You My Heart" (마음을 드려요) | IU |
| February 29 | "On" | BTS |
| March 7 | "Any Song" (아무노래) † | Zico |
| March 14 | "Any Song" (아무노래) † | Zico |
| March 21 | "Start Over" (시작) | Gaho |
| March 28 | "Start Over" (시작) | Gaho |
| April 4 | "Bloom" (처음처럼) | MC the Max |
| April 11 | "Start Over" (시작) | Gaho |
| April 18 | "Aloha" (아로하) | Jo Jung-suk |
| April 25 | "Aloha" (아로하) | Jo Jung-suk |
| May 2 | "Aloha" (아로하) | Jo Jung-suk |
| May 9 | "Eight" (에잇) | IU featuring Suga |
| May 16 | "Eight" (에잇) | IU featuring Suga |
| May 23 | "Eight" (에잇) | IU featuring Suga |
| May 30 | "I Knew I Love" (사랑하게 될 줄 알았어) | Jeon Mi-do |
| June 6 | "I Knew I Love" (사랑하게 될 줄 알았어) | Jeon Mi-do |
| June 13 | "Eight" (에잇) | IU featuring Suga |
| June 20 | "Downtown Baby" | Bloo |
| June 27 | "Downtown Baby" | Bloo |
| July 4 | "How You Like That" | Blackpink |
| July 11 | "How You Like That" | Blackpink |
| July 18 | "How You Like That" | Blackpink |
| July 25 | "Beach Again" (다시 여기 바닷가) | SSAK3 |
| August 1 | "Beach Again" (다시 여기 바닷가) | SSAK3 |
| August 8 | "Beach Again" (다시 여기 바닷가) | SSAK3 |
| August 15 | "Beach Again" (다시 여기 바닷가) | SSAK3 |
| August 22 | "Beach Again" (다시 여기 바닷가) | SSAK3 |
| August 29 | "Dynamite" | BTS |
| September 5 | "Dynamite" | BTS |
| September 12 | "Dynamite" | BTS |
| September 19 | "Dynamite" | BTS |
| September 26 | "Dynamite" | BTS |
| October 3 | "Dynamite" | BTS |
| October 10 | "Dynamite" | BTS |
| October 17 | "Don't Touch Me" | Refund Sisters |
| October 24 | "Don't Touch Me" | Refund Sisters |
| October 31 | "Dynamite" | BTS |
| November 7 | "Dynamite" | BTS |
| November 14 | "Dynamite" | BTS |
| November 21 | "Dynamite" | BTS |
| November 28 | "VVS" | Miranni, Munchman, Khundi Panda, Mushvenom featuring Justhis |
| December 5 | "VVS" | Miranni, Munchman, Khundi Panda, Mushvenom featuring Justhis |
| December 12 | "VVS" | Miranni, Munchman, Khundi Panda, Mushvenom featuring Justhis |
| December 19 | "VVS" | Miranni, Munchman, Khundi Panda, Mushvenom featuring Justhis |
| December 26 | "VVS" | Miranni, Munchman, Khundi Panda, Mushvenom featuring Justhis |

## Monthly charts

| Month | Song | Artist(s) |
| January | "Meteor" | Changmo |
| February | "Any Song" (아무노래) | Zico |
| March | "Start Over" (시작) | Gaho |
| April | "Aloha" (아로하) | Jo Jung-suk |
| May | "Eight" (에잇) | IU featuring Suga |
| June | "Eight" (에잇) | IU featuring Suga |
| July | "How You Like That" | Blackpink |
| August | "Beach Again" (다시 여기 바닷가) | SSAK3 |
| September | "Dynamite" | BTS |
| October | "Dynamite" | BTS |
| November | "Dynamite" | BTS |
| December | "VVS" | Miranni, Munchman, Khundi Panda, Mushvenom featuring Justhis |