Former Fianna Fail TD Beverley Flynn had cash and several items of jewellery taken during a daylight robbery at her home.
It's understood that the intruder or intruders gained entry to the house near Castlebar, Co Mayo, by forcing a window.
Neither Ms Flynn, her partner Tony Gaughan nor their two children were at home at the time.
Their house - dubbed Beverley Hills by locals - is situated on the N5 about three miles from Castlebar.
The break-in occurred on Wednesday, September 24, and the robbery is thought to be linked to a cluster of similar break-ins in the area including in Castlebar and three in the Westport district
A black Mercedes car with a Carlow registration - which may have been fitted with false number plates - was spotted in the Westport area around the time of the break-ins.
Gardai in Castlebar confirmed a break-in had occurred but would not confirm that Beverley Flynn was one of the victims and said no arrest has been made in connection with the incident.
Gardai have asked the public for their assistance in this matter and have asked anyone with information to contact Castlebar Station at 094 902222 or Westport at 098-25555.
Ms Flynn could not be contacted at the time of going to print and her father, former EU Commissioner Padraig Flynn, who lives near the couple, replied: "I'm not aware of anything dear, goodbye," when asked about the burglary.
It is not the first time Beverley Flynn has been a victim to a theft in broad daylight. The unfortunate former politician has been mugged a total of three times in Dublin city centre.
In 2000, her handbag and mobile phone were snatched while she was sitting at an outside table at a restaurant close to the Dail with Fianna Fail colleague Cecilia Keaveney, then a Donegal TD.
The TD and a man at another table gave chase and forced the thief to drop the handbag. She rang her phone and the thief answered it from O'Connell Street.
The TD was amazed the thief kept asking what he had missed in the handbag - £100 and a cheque for an unspecified amount - a birthday present from her father Padraig.
He offered to sell her the phone for £50 and said he would ring back but the TD had it cut off.
And in another incident the TD was mugged by a drug addict in Temple Bar. She walked up and down and spotted the thief going into another bar.
She retrieved her wallet - less her cash - and the girl involved was caught.
Separately, when she was a student in Dublin she also had her bag taken in a cafe in the ILAC Centre.