family name attested from early 12c., an Anglo-French form of the place name Grantham (Lincolnshire). In reference to crackers, bread, etc., made from unsifted whole-wheat flour, 1834, American English, from Sylvester Graham, U.S. dietetic reformer and temperance advocate. Related: Grahamism. Graham's law in physics (1845) is a reference to Scottish chemist Thomas Graham. Graham Land in Antarctica was named 1832 by English explorer John Biscoe in honor of Sir James Graham, first lord of the Admiralty; the U.S. name for it was Palmer Peninsula in honor of American explorer Nathaniel Palmer, who had led an expedition there in 1820. The rival names persisted until 1964.

Definitions of Graham
graham (n.)
flour made by grinding the entire wheat berry including the bran; (`whole meal flour' is British usage);
Synonyms: whole wheat flour / graham flour / whole meal flour
Graham (n.)
United States evangelical preacher famous as a mass evangelist (born in 1918);
Synonyms: Billy Graham / William Franklin Graham
Graham (n.)
United States dancer and choreographer whose work was noted for its austerity and technical rigor (1893-1991);
Synonyms: Martha Graham