Paul Fatt FRS (13 January 1924 – 28 September 2014) was a British neuroscientist, who was a professor at University College London.

[1] With Bernard Katz, he developed the "quantal hypothesis" for neurotransmitters.

[2][3][4] Paul married three times: Ione Copplestone (1926-2016) with whom he had three children: Michael (1954), Laura (1955), Harriet (1957); Gertrude Falk (1926–2008) with whom he had one child, Ilsa;[5] and Carla Wartenberg fom 1985 till his death.

Jonathan F. Ashmore, PAUL FATT 13 January 1924 — 28 September 2014, in: https://royalsocietypublishing.org/doi/pdf/10.1098/rsbm.2016.0005