Lynne McTaggart (born 1951) is a journalist and author, most famous for her popular books The Field and The Intention Experiment.

She and her publisher/husband Bryan Hubbard are directors of a public company called "What Doctors Don't Tell You Ltd.", which publishes newsletters that critique mainstream medicine.

As well as continuing to write about alternative medicine and editing the "What Doctors Don't Tell You" publications, McTaggart has also developed a program called "Living The Field", based on an understanding of the zero point field that is not accepted by the scientific community. She is head of the Intention Experiment, a large scale web-based investigation to discover whether intentions can affect the physical world. She also appears in the extended version of the movie What the Bleep Do We Know!?.

Ms. McTaggart instigated a plagiarism lawsuit against Doris Goodwin when McTaggart discovered that Goodwin had appropriated her work from the Kathleen Kennedy biography. Goodwin settled with McTaggart out of court.^{[citation needed]}

Lynne and her husband Bryan live and work in Wimbledon, England, with their two daughters.

• Kathleen Kennedy: Her Life and Times (1983) ISBN 0-385-27415-7
• What Doctors Don't Tell You: The Truth About The Dangers Of Modern Medicine (1999) ISBN 0-380-80761-0
• The Cancer Handbook: What's Really Working (2000) ISBN 1-890612-18-9
• The Field: The Quest for the Secret Force of the Universe (2003) ISBN 0-06-093117-5 (also available in German)
• The Intention Experiment: Using Your Thoughts to Change Your Life and the World (2007) ISBN 0007194587