Gardaí in Galway are looking for Ms Philomena Walsh, (29) from Galway who went missing two days ago.
Ms Walsh was last seen at nine o'clock on Thursday night at her home in Moycullen. She is described as 5ft 5", of slim build, with long black shoulder length hair.
She was wearing dark blue jeans, a blue cardigan and a blue top and may be wearing runners.
Gardaí at Rathfarnham are also seeking assistance in tracing the whereabouts of Dzmitri Sabaleuski, a native of Belarus aged 25, missing from Marian Park, Rathfarnham, since April 19.
Mr Sabaleuski had been attending classes in Dublin and speaks little English.
He is described as being 5'7" in height, of stout build and was wearing blue jeans, dark blue pullover and a black ski jacket when last seen.
Anyone with information is asked to contact the gardaí at Galway: 091 - 538000/Rathfarnham at 01 6666500 or any Garda Station.