Sir Arnold Whittaker Wolfendale FRS (25 June 1927 – 21 December, 2020) was a British astronomer. He was Astronomer Royal from 1991 to 1995. He was Emeritus Professor in the Department of Physics at Durham University and was president of the European Physical Society (1999–2001). He was President of the Royal Astronomical Society from 1981 to 1983.