Harry Charles Lamacraft, (born 1911 in Barnet, Hertsfordshire) was an English motorcycle racer, most noted for successful exploits at the Brooklands racetrack and at the Isle of Man TT in the 1930s. He took 10th place in the 1934 Isle of Man Junior TT and 10th place in the 1935 Isle of Man Senior TT. In all, he rode in the TT 11 times, finishing above 19th place every time.
Lamacraft was most successful racing Velocette (350cc KTT) and Excelsior (Coventry)(500cc)motorcycles. His first KTT was later sold to Bert Perryman, who began his career at Brooklands with this machine (see, 'A Clubman at Brooklands', Foulis 1979) - this machine is now property of Jeff Clew and can be seen in the Haynes Museum. His second Velocette, a KTT mk IV, raced at Brooklands and the Isle of Man (1933/34 TT's), won 10th place 1933 Junior TT. This machine was sold to David Vincent, who won his Gold Star at Brooklands (for lapping at 100mph during a race) with Lamacraft's former motorcycle. Lamacraft won a Gold Star at Brooklands in 1935, of a lap of over 100mph during a race. Period photographs show that he experimented with supercharging on his mkV Velocette, presumably for racing at Brooklands.
Lamacraft joined the Royal Air Force during World War Two and served as a flight sergeant navigator, flying a Ventura bomber. He was killed in a mission to destroy a power plant on May 3 1943 over Holland, aged 32. He is buried in Amersfoort, Netherlands.