Ann Janet Woolcock AO FAA FRACP (11 December 1937, Reynella, South Australia – 17 February 2001, Sydney) was an Australian respiratory physician–scientist and one of the world's leading asthma experts.
She contributed greatly to the field of asthma research and founded the Institute of Respiratory Medicine, Sydney, which is now known as the Woolcock Institute of Medical Research.In 1992 Woolcock became the first woman in clinical medicine to be elected a Fellow of the Australian Academy of Science.
She was a founding member and President of the Asian Pacific Society of Respirology, and was the Principal Scientist of the Co-operative Research Centre for Asthma (CRC for Asthma) in 1999.