Gemma O'Doherty and John Waters have been ordered to pay the costs of two days of litigation in the High Court.
It's after they launched a legal challenge to the restrictions brought in to combat the spread of Covid-19.
Mr Justice Meenan ruled the lay litigants' failure to consider legal arguments put forward in court meant the proceedings were "very far from being in the public interest".
He ordered them to pay the costs incurred by the Oireachtas and the Minister for Health.
