The suspect is described as a Caucasian male, 5’8″/5’9″ in height, possibly aged in his late 20s, and with short, straight brown hair, longer at the front.
He wore braces on his teeth and spoke good English with a foreign accent.
The man is sought in connection with a serious sexual assault that took place in Carpenterstown Park, locally known as Tir Na Nog park, Diswellstown Road, Dublin 15, on Saturday October 18.
A woman walking through the park at around 7:30am was approached and assaulted by a man wearing a grey hoody.
Gardai are appealing for witnesses, or anyone who may have noticed any unusual activity around the park in the last few weeks, to come forward and contact Blanchardstown Garda Station on 01 6667000.