| Competition: | Welsh Premier League |
| Season: | 2008–09 |
| Winners: | Rhyl |
| Relegated: | Caernarfon Town |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | Rhyl |
| Continentalcup2: | Europa League |
| Continentalcup2 Qualifiers: | Llanelli The New Saints Bangor City (via cup) |
| League Topscorer: | Rhys Griffiths (31) |
| Biggest Home Win: | The New Saints 8–0 Caernarfon Town |
| Biggest Away Win: | Porthmadog 0–6 Bangor City |
| Highest Scoring: | Porthmadog 6–5 Gap Connah's Quay |
| Matches: | 306 |
| Total Goals: | 998 |
| Prevseason: | 2007–08 |
| Nextseason: | 2009–10 |
The 2008–09 Welsh Premier League was the 17th season of the Welsh Premier League since its establishment in 1992 as the League of Wales. It began on 15 August 2008 and ended on 25 April 2009.[1] Llanelli were the defending champions.
Prestatyn Town were promoted from the Cymru Alliance and played in the top division for the first time in their history. Caersws survived relegation after none of the top two teams in the divisions below could meet ground regulations.
Source: welsh-premier.com
| Month | Manager of the Month | Player of the Month | |||
|---|---|---|---|---|---|
| Manager | Club | Player | Club | ||
| September | Andy Cale | The New Saints | Josh Johnson | Rhyl | |
| October | Peter Nicholas | Llanelli | Christian Edwards | Aberystwyth Town | |
| November | Darren Ryan | Newtown | Neil Thomas | Haverfordwest County | |
| December | Derek Brazil | Haverfordwest County | Neil Roberts | Rhyl | |
| January | Mark Jones | Port Talbot Town | Chris Sharp | Bangor City | |
| February | Allan Bickerstaff | Rhyl | Tommy Holmes | The New Saints | |
| March | Peter Nicholas | Llanelli | Steve Rogers | Welshpool Town | |
| April | Mark Jones | Port Talbot Town | Greg Strong | Rhyl | |
| Nat. | Position | Name | Club | |
|---|---|---|---|---|
| GK | Lee Idzi | Haverfordwest County | ||
| RB | Craig Williams | Newtown | ||
| CB | George Horan | Rhyl | ||
| CB | Stuart Jones | Llanelli | ||
| LB | Andy Legg | Llanelli | ||
| RM | Craig Jones | Rhyl | ||
| CM | Gareth Owen | Rhyl | ||
| CM | John Leah | The New Saints | ||
| LM | Sion Edwards | Bangor City | ||
| ST | Neil Roberts | Rhyl | ||
| ST | Rhys Griffiths | Llanelli |