John William Goodby is a British materials chemist.

He is the chairman of materials chemistry at the University of York.^[1] He studies liquid crystals, complex fluids and self-organising systems. He was elected a Fellow of the Royal Society in 2011^[2] and received their Royal Medal in 2016 "for his major advances and discoveries of new forms of matter and materials, in particular the development of chiral liquid crystals."^[3]