Sydney Airport in New South Wales has several Baby changing and parenting rooms located throughout the airport so mums traveling with young infants can take a moment to breastfeed or pump milk for later use. Make sure to call ahead for the exact locations of each of the parenting rooms.
Baby change rooms are in both terminals on either side of passport control (security checkpoint), plus there are kids’ play areas (T1, landside between check-ins A and C, and end of counter J; airside near gates 31 and 33, plus 49 & 59 in Pier C).
Each breastfeeding room offers a changing station, private nursing cubicles with lockable doors, and a microwave to heat baby food/milk. A large bench is handy for your belongings and a huge sink for cleaning up after you're done.