William Schwer (born 12 April 1969 in Luton, England), more commonly known as Billy Schwer, is a former professional boxer from Luton in Bedfordshire, England.
For the majority of his professional career, Schwer fought in the lightweight division but also competed in the light welterweight division.
He is the former British, Commonwealth and European lightweight and the IBO World Light Welter-weight title Champion.
Schwer's father was the Irish amateur title holder in the 1960s before he emigrated to England.
Schwer is a former nationals schoolboy title holder and represented England at youth and senior level.
At the 1990 ABA National Championships held at the Royal Albert Hall, London, Schwer represent the Luton Irish Boxing Club and was runner up to PJ Gallagher, in the lightweight (60 kg, the same PJ Gallagher was known as Patrick Gallagher when billy lost in the final of the aba, and Patrick Joseph become the galeforce PJ Gallagher, A professional British super feather weight champion in 1996 to 1997.
Schwer was trained by the late Jack Lindsay and fought out of his Luton base north of London. He was a popular fighter and attracted a large following amongst the Luton and Luton Irish communities.
Schwer had his first professional fight in October 1990. His first fight took place at the York Hall, Bethnal Green, London. In this fight Schwer beat Frenchman Pierre Conan with a first round knockout.
Schwer's first title fight came in 1992 against Carl Crook.