| Competition: | Liga Nacional de Ascenso |
| Season: | 2009 |
| Winners: | Río Abajo |
| Promoted: | No promotion |
| Relegated: | No relegation |
| League Topscorer: | Apertura: Andy Nuñez (20 goals)Clausura: Roberty Morales (21 goals) |
| Biggest Away Win: | Génesis 0–13 Pan de Azúcar |
| Highest Scoring: | Génesis 0–13 Pan de Azúcar |
| Prevseason: | 2008 |
| Nextseason: | 2010–11 |
The Liga Nacional de Ascenso 2009 season (officially "Torneo Primera A 2009") started on February 28, 2009. The defending champion and Apertura winner was Río Abajo and the Clausura winner was Orión. On December 12, 2009, a grand final was played where Río Abajo were crowned champions of the Liga Nacional de Ascenso after defeating Orión 3–1. However (as it happened in the 2008 edition) Río Abajo lost the promotion play-off, but this time against Alianza in a 2–1 aggregate score, thus failing to promote to the Liga Panameña de Fútbol.
The champion was promoted directly without playing a promotion play-off.
| Place | Team | Played | Won | Draw | Lost | Goals Scored | Goals Conceded | +/- | Points | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Río Abajo | 18 | 12 | 5 | 1 | 48 | 20 | +28 | 41 | |
| 2. | Atlético Nacional | 18 | 10 | 5 | 3 | 34 | 17 | +17 | 35 | |
| 3. | C.A.I. | 18 | 11 | 2 | 5 | 35 | 22 | +13 | 35 | |
| 4. | Paraíso | 18 | 9 | 5 | 4 | 43 | 28 | +15 | 32 | |
| 5. | Chorrillito | 18 | 10 | 1 | 7 | 35 | 36 | -1 | 31 | |
| 6. | Pan de Azúcar | 18 | 7 | 3 | 8 | 49 | 33 | +16 | 24 | |
| 7. | Orión | 18 | 7 | 2 | 9 | 37 | 33 | +4 | 23 | |
| 8. | Millenium | 18 | 5 | 3 | 10 | 29 | 38 | -9 | 18 | |
| 9. | El Tecal | 18 | 4 | 2 | 12 | 19 | 48 | -29 | 14 | |
| 10. | Génesis | 18 | 1 | 0 | 17 | 19 | 72 | -53 | 3 |
| Qualified to the final round. |
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| Apertura 2009 I Champion: Río Abajo |
| Position | Player | Scored for | Goals | |
|---|---|---|---|---|
| 1 | Andy Nuñez | Pan de Azúcar | 20 | |
| 2 | Mario Cox | Chorrillito | 17 | |
| 3 | Roberty Morales | Pan de Azúcar | 13 | |
| 4 | Shamar Amantine | Orión | 10 | |
| 5 | Aramis Haywood | Río Abajo | 9 |
| Place | Team | Played | Won | Draw | Lost | Goals Scored | Goals Conceded | +/- | Points | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Río Abajo | 18 | 13 | 1 | 4 | 52 | 16 | +36 | 40 | |
| 2. | Paraíso | 18 | 11 | 3 | 4 | 42 | 25 | +17 | 36 | |
| 3. | Orión | 18 | 10 | 3 | 5 | 62 | 34 | +28 | 33 | |
| 4. | Pan de Azúcar | 18 | 10 | 2 | 6 | 37 | 31 | +6 | 32 | |
| 5. | Chorrillito | 18 | 10 | 1 | 7 | 37 | 24 | +13 | 31 | |
| 6. | Atlético Nacional | 18 | 8 | 4 | 6 | 36 | 25 | +11 | 28 | |
| 7. | Independiente | 18 | 5 | 4 | 9 | 31 | 45 | -14 | 19 | |
| 8. | Millenium | 18 | 5 | 3 | 10 | 27 | 46 | -19 | 18 | |
| 9. | El Tecal | 18 | 4 | 5 | 9 | 33 | 46 | -13 | 17 | |
| 10. | Génesis | 18 | 0 | 2 | 16 | 15 | 80 | -65 | 2 |
| Qualified to the final round. |
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| Apertura 2009 II Champion: Orión |
| Position | Player | Scored for | Goals | |
|---|---|---|---|---|
| 1 | Roberty Morales | Orión | 21 | |
| 2 |  Jefferson Viveros | Río Abajo | 19 | |
| 3 | Luis Rentería Eduardo Santos | Orión Chorrillito | 15 | |
| 5 | Andy Nuñez | Pan de Azúcar | 10 |
| Club | Champion | |
|---|---|---|
| Río Abajo | Apertura 2009 I Champion | |
| Orión | Apertura 2009 II Champion |
|}
Río Abajo remain in Liga Nacional de Ascenso