William George Fleming GC (1865–1954) was a lifeboatman from Gorleston-on-Sea on the east coast of Norfolk, England. His service with the Royal National Lifeboat Institution (RNLI) spanned nearly fifty years, in which time he won the George Cross and the RNLI Medal in Gold and in Silver, and the Bronze Medal three times.

A number of awards have been established by the Royal National Lifeboat Institution (RNLI) since its creation in 1824. None are approved by the Crown, and are therefore unofficial awards. As such, they do not appear in the official British order of wear, although the principal lifesaving award, the Medal of the RNLI, can be worn on the right breast in uniform by members of the British armed forces.