Biller is an Anglo Saxon and German surname, and it's a variant of Buhler. Notable people with the surname include:
Anna Biller, independent American filmmaker Georg Christoph Biller (1955–2022), German choral conductor of the Thomanerchor John Biller (1879–1960), American athlete who competed mainly in the standing jumps José Biller, American cardiologist Kenneth Biller, TV producer, TV writer, TV director and TV editor, best known for Star Trek: Voyager Maxim Biller (born 1960), German writer Nigel Biller (born 1967), British illustrator, writer and musician Nikola Biller-Andorno, German bioethicist Stefanie Biller (born 1985), long-distance swimmer from Germany