Council coat of arms  
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The coat of arms of the county was designed by the Office of the Chief Herald. The coat of arms was selected from two designs which were put on display and comments were invited from the general public.

Council coat of arms linking to Council page Irish Crown
featured on the former Borough coat of arms - associations with King Laoghaire and Dún Laoghaire's origins.

Oak Branch with Acorns
to represent the ancient wooded nature of the entire county and the aspiration for conservation of its natural environment.

Shamrock
from the seal of Rathdown No.1 Rural District Council.

Viking Ship
featured on the former Borough coat of arms - represents the fact that the coastal area has Viking associations.

Mountain / Hill (triangle)
represents the hills and part of the Dublin Mountains to the south and south-west of the county.

The Sea
represents the maritime tradition of the county and its importance for trade and recreation. It also represents the common coastline of the two former administrative areas unified by the Council.

Motto
Ó Chuan go Sliabh - from the harbour to the mountain.

 


 



 

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