35-year-old Christopher Duff hasn't been seen since Wednesday when he left his home on Prussia Street on his hybrid Trek bicycle.
He's of medium build, 6 foot one inches tall, with red hair, a beard and blue eyes.
Gardaí believe he may have travelled to Wicklow or Wexford and are asking anyone with information on his whereabouts to contact them.
Weekend Cold Snap To Provide Brisk Shake Up To Interminable Rainy Monotony
Greystones Fishermen Still Struggling Despite Harbour Settlement Warns Senator
Kilkenny Hurling Legend Helps Wicklow GAA Expand Profile With Fans App
New Plan Approved For Greystones Delgany Kilcoole.
Rás Tailteann Returns to Wicklow with Baltinglass Stage Finish