Arthur Bingham Walkley (17 December 1855 – 7 October 1926), usually known as A B Walkley, was an English public servant and drama critic. As a civil servant he worked for the General Post Office from 1877 to 1919, in increasingly senior posts; he did not seek the highest official positions, preferring to leave himself time and energy for his parallel career as a drama critic. As a journalist he worked with Bernard Shaw on The Star at the beginning of his newspaper career; he is probably best known for his twenty-six years as theatre critic of The Times. He retired from the Post Office in 1919, and for the last six years of his life concentrated wholly on writing.