# List of Gaon Digital Chart number ones of 2011

The Gaon Digital Chart of Gaon Music Chart is a chart that ranks the best-performing songs in South Korea. The data is collected by the Korea Music Content Association (KMCA) and ranks songs according to their performance on the Gaon Download, Streaming and BGM charts. Below is a list of songs that topped the weekly and monthly charts. The actual overall best-performing song on the chart of 2011, T-ara's "Roly-Poly", did not top any weekly or monthly chart—becoming the first (and, so far, only) time this feat has happened in the chart's history.

## Weekly charts

| Week ending date | Song | Artist |
| January 1 | "Good Day" (좋은 날) | IU |
| January 8 | "Good Day" (좋은 날) | IU |
| January 15 | "That Man" (그 남자) | Hyun Bin |
| January 22 | "For First Time Lovers (Banmal Song)" (처음 사랑하는 연인들을 위해 (반말송)) | Jung Yong-hwa |
| January 29 | "For First Time Lovers (Banmal Song)" (처음 사랑하는 연인들을 위해 (반말송)) | Jung Yong-hwa |
| February 5 | "Someday" | IU |
| February 12 | "Black & White" | G.NA |
| February 19 | "The Story Only I Didn't Know" (나만 몰랐던 이야기) | IU |
| February 26 | "The Story Only I Didn't Know" (나만 몰랐던 이야기) | IU |
| March 5 | "Tonight" | Big Bang |
| March 12 | "Going Crazy" (미친거니) | Song Jieun featuring Bang Yong-guk |
| March 19 | "My Heart Beating" (가슴이 뛴다) | K.Will |
| March 26 | "Intuition" (직감) | CNBLUE |
| April 2 | "Please" (제발) | Kim Bum-soo |
| April 9 | "Please" (제발) | Kim Bum-soo |
| April 16 | "Love Song" | BigBang |
| April 23 | "Danger" (피노키오) | f(x) |
| April 30 | "Don't Cry" | Park Bom |
| May 7 | "Don't Cry" | Park Bom |
| May 14 | "I Hope It Would Be That Way Now" (이젠 그랬으면 좋겠네) | Park Jung-hyun |
| May 21 | "Lonely" | 2NE1 |
| May 28 | "If You Were Like Me" (나와 같다면) | Kim Yeon-woo |
| June 4 | "For 1000 Days" (천일동안) | Ock Joo-hyun |
| June 11 | "Don’t Forget Me" (나를 잊지 말아요) | Huh Gak |
| June 18 | "Coordination" (조율) | JK Kim Dong-wook |
| June 25 | "Hands Up" | 2PM |
| July 2 | "I Am the Best" (내가 제일 잘 나가) | 2NE1 |
| July 9 | "Having an Affair" (바람났어) | GG (Park Myung-soo & G-Dragon) featuring Park Bom |
| July 16 | "Having an Affair" (바람났어) | GG (Park Myung-soo & G-Dragon) featuring Park Bom |
| July 23 | "Good-bye Baby" | Miss A |
| July 30 | "Good-bye Baby" | Miss A |
| August 6 | "Ugly" | 2NE1 |
| August 13 | "So Cool" | Sistar |
| August 20 | "I Turned Off the TV..." (TV를 껐네...) | Leessang featuring Yoon Mi-rae and Kwon Jung-yeol |
| August 27 | "I Turned Off the TV..." (TV를 껐네...) | Leessang featuring Yoon Mi-rae and Kwon Jung-yeol |
| September 3 | "Don't Say Goodbye" (안녕이라고 말하지마) | Davichi |
| September 10 | "Don't Say Goodbye" (안녕이라고 말하지마) | Davichi |
| September 17 | "Don't Say Goodbye" (안녕이라고 말하지마) | Davichi |
| September 24 | "Hello" | Huh Gak |
| October 1 | "Sixth Sense" | Brown Eyed Girls |
| October 8 | "Tokyo Girl" (동경소녀) | Busker Busker |
| October 15 | "Open Arms" | Ulala Session featuring Christina |
| October 22 | "The Boys" | Girls' Generation |
| October 29 | "The Boys" | Girls' Generation |
| November 5 | "The Western Sky" (서쪽 하늘) | Ulala Session |
| November 12 | "Be My Baby" | Wonder Girls |
| November 19 | "Cry Cry" | T-ara |
| November 26 | "Cry Cry" | T-ara |
| December 3 | "You & I" (너랑 나) | IU |
| December 10 | "You & I" (너랑 나) | IU |
| December 17 | "You & I" (너랑 나) | IU |
| December 24 | "Trouble Maker" | Trouble Maker |
| December 31 | "We Were in Love" (우리 사랑했잖아) | Davichi and T-ara |

## Monthly charts

Source: Gaon Monthly Digital Chart :
| Month | Song | Artist | Aggregate points | Total downloads | Year-end position |
| January | "That Man" | Hyun Bin | – | – | 39 |
| February | "The Story Only I Didn't Know" | IU | – | – | 10 |
| March | "My Heart Beating" | K.Will | 158,316,435 | 1,113,984 | 13 |
| April | "Love Song" | BigBang | 146,984,191 | 1,098,775 | 27 |
| May | "Lonely" | 2NE1 | 190,313,245 | 1,477,729 | 4 |
| June | "Starlight Moonlight" | Secret | 143,129,339 | 1,373,180 | 15 |
| July | "Having an Affair" | GG (Park Myung-soo & G-Dragon) feat. Park Bom | 268,055,358 | 2,623,583 | 2 |
| August | "I Turned Off the TV..." | Leessang feat. Yoon Mi-rae & Kwon Jung-yeol | 134,997,784 | 1,524,068 | 23 |
| September | "Don't Say Goodbye" | Davichi | 135,249,438 | 1,595,977 | 18 |
| October | "Tokyo Girl" | Busker Busker | 135,234,443 | 1,831,105 | 52 |
| November | "Be My Baby" | Wonder Girls | 171,813,840 | 2,186,473 | 33 |
| December | "You and I" (너랑 나) | IU | 161,517,725 | 1,854,143 | 36 |