Barrister Jolyon Maugham has launched a crowdfunding campaign to raise the over €80,000 that's needed to finance the case.
It's understood the barrister is seeking a number of anti-Brexit MEPs to front the legal action.
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Issues around Article 50 – which triggers the Brexit process – are already being considered by Britain's Supreme Court.
Mr Maugham wants the Irish courts to rule on whether Article 50 can be revoked – if the UK's Brexit deal isn't good enough.