Gardaí in Clonakilty are seeking assistance from the public in tracing the whereabouts of 36-year-old Susan Greene and her 17-month-old daughter Sinetta.
They are missing from their home in Skibbereen since October 1.
Susan is described as 5ft 2” in height with brown hair. It is not known what she was wearing when last seen.
They were reported missing by family members on Wednesday and Gardaí are anxious to trace their whereabouts.
Anyone with information is asked to contact Clonakilty Garda Station 023-8821570, the Garda Confidential Line 1800 666 111 or any Garda Station.