Pinoy Big Brother: Season 1
| Pinoy Big Brother | |
|---|---|
| Season 1 | |
| Presented by | |
| No. of days | 112 |
| No. of housemates | 13 |
| Winner | Nene Tamayo |
| Runner-up | Jason Gainza |
| Release | |
| Original network | ABS-CBN |
| Original release | August 21 – December 10, 2005 |
| Season chronology | |
The first season of the reality game show Pinoy Big Brother premiered on the ABS-CBN network on August 21, 2005 and ran for 112 days until December 10, 2005.
Nene Tamayo was named the show's first ever Big Winner over Jayson Gainza and two other finalists, Cass Ponti and Uma Khouny.