The Paediatric Society of Papua New Guinea (PNG) has been in existence for 40 years, and in that time has been involved in The Society has grown from a small base to over 80 members and trainees. The Society has had a major role in developing guidelines and standards for paediatrics and child health. It has provided guidance to the Department of Health and the community on child health matters. The Society has worked closely with educational institutions to design and implement paediatric training for all cadres of health workers, and is a collegiate and friendly group supporting child health workers. This paper outlines a brief history of the Society, on its 40th anniversary.