Jack Canfield is an American author and motivational speaker. He is best known as the co-creator of the "Chicken Soup for the Soul" book series, which has over 250 titles and 500 million copies in print in more than 40 languages. In 2005, Canfield co-authored with Janet Switzer The Success Principles: How to Get From Where You Are to Where You Want to Be.

Canfield received a BA in Chinese History from Harvard University and a Masters from the University of Massachusetts. He has worked as a teacher, workshop facilitator, and psychotherapist. He is the founder of Self Esteem Seminars in Santa Barbara, and The Foundation for Self Esteem in Culver City, California.