All babies have a human right to breastmilk, based on the right to life, to adequate nutrition and to the highest attainable standard of health, and based on women's rights, which include the right to breastfeed, to breastfeeding education and to paid maternity leave. This article examines international human rights law as it applies to breastfeeding, with particular reference to the Australian context. It also lays out the rights obligations of organisations such as the Australian Breastfeeding Association, their relations with government and the merits of such organisations adopting a rights-based approach to advocacy.