Rathcoole (Irish: Ráth Cúil, meaning "ringfort of Comhaill or Cumhaill") is a village in County South Dublin in Ireland. It is southwest of the capital Dublin. In 2016, 4,351 people live in Rathcoole.

Rathcoole is twinned with:

• École-Valentin, France, since 14 April 2000

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