The Irish Government will not actively campaign to keep the UK in the EU
Taoiseach Enda Kenny will meet with British Prime Minister David Cameron in London today.
A possible British exit from the EU is expected to top the agenda, that vote could be held as early as this summer.
Some 350,000 Irish citizens are currently living in the UK and eligible to vote in the referendum, and a further 100,000 UK citizens live in the Republic of Ireland.
Mr Kenny is expected to reiterate the potential impact that the UK leaving could have on Northern Ireland.
The Financial Times reports that the Irish government is sympathetic to attempts to mobilise an Irish vote to keep the UK in the EU - but it will be conscious of not being seen to directly intervene in the vote.
Charlie Flanagan, Minister for Foreign Affairs told the newspaper that Ireland will "not be actively campaigning."
Weekly trade between the UK and Ireland is worth some €1bn.
Speaking on Newstalk Breakfast, the Irish Independent's Political Correspondent Cormac McQuinn explained that "the Irish Government is worried about such issues as the effect on the border with the North, the impact on Irish citizens in Britain, and of course trade - because the UK is Ireland's biggest trading partner".