William Roth (1921–2003) was an American lawyer and politician from Delaware.
William Roth or Bill Roth may also refer to:
- William M. Roth (1916–2014), American businessman and politician from California
- Bill Roth (gymnast) (b. 1970), American gymnast
- Bill Roth (sportscaster) (20th–21st century), American television and radio sportscaster