William Lomas (8 March 1928 – 14 August 2007) was an English Grand Prix motorcycle road racer.

[3] He won the 1955 and 1956 350cc world championship as a member of the Moto Guzzi factory racing team.

In the 1956 season, he rode the famous V8 Moto Guzzi Grand Prix race bike.

Lomas was also an accomplished trials rider.

He died in Mansfield, England on 14 August 2007 from complications following a heart attack.