English: Designed by Seos Ó Colla and launched in August 2017 after a decade of development by the Tallaght Historical Society, An Bratach Aontacht Thamlachta or The Tallaght Unity Flag has been adopted as a flag for Tallaght by both the Tallaght Historical Society and the Tallaght Community Council.

The Tallaght Unity Flag, prominently features a red deer, symbolising strength and resilience, with its leaping posture suggesting forward movement and progress, embodying the spirit of the Tallaght people. The green triangle in the lower left corner represents the lush landscapes and natural beauty of Tallaght, a color historically associated with Ireland, signifying growth and harmony. The flag also includes three blue, eight-pointed stars on the right side, inspired by the design captured during the Battle of Tallaght in 1867, representing endurance and the historical struggles of the community, with blue emphasising inclusivity and unity. The white background provides a neutral canvas, symbolising peace and unity, reflecting the community’s aspirations for harmony and collaboration.

This flag is owned by the Tallaght Historical Society who provide the following permissions statement:

"The Tallaght Historical Society welcomes and encourages the use of the Tallaght Unity Flag however if you wish to use the flag please observe the protocols listed below. Any deviation from these protocols must receive prior permission from the Tallaght Historical Society by emailing annehanrahan2001@yahoo.com.

- In cases where the Unity Flag is displayed along with other flags of equal height, The Unity Flag can only be displayed in the place of honour (observer’s left) if An Bhratach Náisiúnta, the National Flag, is not also displayed.

- Within the locality, the Unity Flag must be flown in the place of honour alongside flags of other cities, towns, boroughs, villages, education facilities, community groups and commercial organisations. It should be to the observer’s right of the European Flag and county council flags.

- No flag or pennant should be flown above the National Flag and in all cases the National Flag should be in the place of honour. The Unity Flag must always be to the left (or an observer’s right) of the National Flag.

- When the National Flag is flown at a building or entrance along with other flags of equal height, it should be first on the right (on an observer’s left).

- When the Unity Flag has become worn or frayed it is no longer fit for display, and should not be used in any manner implying disrespect. It should be destroyed or disposed of in a dignified way.

- The flag should never be defaced by placing slogans, lettering, logos, pictures or emblems of any kind on it. Interfering with the integrity of its design is disrespectful. When the Unity Flag is being reproduced in printed or electronic format, the principles of respect apply."