Eddie O'Sullivan's side will play their first game against Australia on Saturday, June 10 and will follow this up with two clashes against the All Blacks on June 17 and 24. The venues for each Test are yet to be confirmed.
Ireland have already been pencilled in to face New Zealand, Australia and Romania in the autumn Tests this November.
Ireland have played Australia three times since 2002, the year of the famous 18-9 Lansdowne Road defeat of the Aussies. The sides' last meeting came at the 2003 World Cup where O'Sullivan's charges were agonisingly edged 17-16.
Ireland last chalked up a win on Australian soil when Ollie Campbell landed a penalty and two drop goals for a 9-3 second Test win on the 1979 tour Down Under.
An Irish side last visited New Zealand in 2002 when the tourists were defeated twice - 15-6 in Dunedin and 40-8 in the second Test in Auckland.
Test Match dates are as follows:
June 10, 2006: Australia v Ireland, venue tbc
June 17, 2006: New Zealand v Ireland, venue tbc
June 24, 2006: New Zealand v Ireland, venue tbc