Helen Mary "Jenny" Boyd (born 8 November 1947) is a former English model. She quit her modelling career in the 1960s after discovering Transcendental Meditation, and she soon considered modelling a "waste of her time." She later became a clinical consultant and author. She is the younger sister of 1960s model and photographer, Pattie Boyd (first wife of Beatles' lead guitarist George Harrison and blues guitar legend Eric Clapton) and the older sister of Paula Boyd.