William Herbert Wallace (29 August 1878 – 26 February 1933) was an Englishman convicted in 1931 of the murder of his wife, Julia, in their home in Wolverton Street in Liverpool's Anfield district. Wallace's conviction was later overturned by the Court of Criminal Appeal, the first instance in British legal history where an appeal had been allowed after re-examination of evidence. The case, with its strange background, has long been the subject of speculation and has generated many books, being regarded internationally as a classic murder mystery.