600 Bank of Ireland employees belonging to the Unite trade union are to picket on Tuesday in a row over bonuses.
The picket will coincide with the bank's Annual General Meeting at the RDS.
The Irish Bank Officials Association, which represents a further 6,700 employees at the bank, have already voted for industrial action.
Unite says that 91% of its members voted for industrial action after Bank of Ireland cut annual bonuses from 6% to 3%.
Banking unions say that they co-operated with a restructuring programme which resulted in more than 2,000 job cuts and cost savings worth over €145m a year.
Bank of Ireland has said that the bonuses were always conditional on certain criteria being met.
It says that earnings per share targets have not been met and that a full 6% bonus cannot be justified.
