This is a list of number one singles on the Billboard Brasil Hot 100 chart in 2011. Billboard publishes a monthly chart.
| Issue date | Song | Artist(s) | Reference |
|---|---|---|---|
| January | "The Time (Dirty Bit)" | Black Eyed Peas | [1] |
| February | |||
| March | |||
| April | "Firework" | Katy Perry | [2] |
| May | "On the Floor" | Jennifer Lopez featuring Pitbull | |
| June | "Talking to the Moon" | Bruno Mars | [3][4] |
| July | |||
| August | |||
| September | [5] | ||
| October | |||
| November | "Last Friday Night (T.G.I.F.)" | Katy Perry | |
| December | [6] |
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