The All Ireland One Act Finals take place in Backstage Theatre and Centre for the Arts from the 4th to 6th of December 2009. The finals are held under the auspices of the Drama League of Ireland and the Amateur Drama Council of Ireland.
| Date | Group | Play | Author | Results | |
| Fri 4th Dec @ 8:00pm | Open | Bray Arts Group | 'The Librarian' | James Prideaux | |
| Confined | Blue Hat Productions | 'Commencing' | Jane Sheppard | ||
| Open | Silken Thomas Players | 'A Dog Called Redemption' | Matthew Landers | 3rd | |
| Sat 5th Dec @ 2:00pm | Open | Corn Mill Theatre Group | 'Wagging Finger' | Seamus O'Rourke | |
| Confined | Shannonside Drama Group | 'Mickey Kannis Caught My Eye' | Geraldine Aron | ||
| Open | Dark Horse Drama Group | 'Virtual Reality' | Alan Arkin | ||
| Sat 5th Dec @ 8:00pm | Open | Prosperous Dramatic Society | 'The Zoo Story' | Edward Albee | |
| Confined | Rath Players | 'A Galway Girl' | Geraldine Aron | 3rd | |
| Open | 36 Players | '27 Wagons Full of Cotton' | Tennessee Williams | ||
| Sun 6th Dec @ 2:00pm | Open | Bradán Players | 'The Quality of Boiled Water' | Jason Milligan | 1st |
| Confined | Breffni Players | 'Faded Footsteps' | Maura Williamson | 2nd | |
| Sun 6th Dec @ 7:30pm | Open | Dalkey Players | 'Specter' | Don Nigro | 2nd |
| Confined | Backstage Theatre Group | 'Small Box Psychosis' | Barry McKinley | 1st |
