He was last seen on Thursday, 24 September.
Gardaí have appealed for the public's help in finding 27-year-old Cian Langelaan, missing from the Falcarragh area of Donegal since last Thursday 24 September.
Cian is described as being about 5 foot 8 inches in height, of medium build, with sandy hair and blue eyes.
He was last seen wearing blue jeans, a white t-shirt and black boots.
Anyone with information on Cian's whereabouts is asked to contact Milford Garda Station in Donegal on 074 9153060, the Garda Confidential Line on 1800-666- 111, or any garda station.
