| Infektio | |
| Type: | studio |
| Artist: | Circle |
| Cover: | Infektio.jpg |
| Released: | 2011 |
| Label: | Conspiracy Records |
| Prev Title: | Rautatie |
| Prev Year: | 2010 |
| Next Title: | Noiduttu |
| Next Year: | 2011 |
Infektio is the thirty-fifth album by Finnish experimental rock band Circle. It was released in April 2011 on CD and limited vinyl.