Graham Walker may refer to:

• Graham Walker (motorcyclist) (1896–1962), English motorcycle racer, broadcaster and journalist
• Graham Walker (academic), American academic, professor, and president of Patrick Henry College
• Graham Walker (editor) (1946–2016), editor of The World Today magazine from 1995 to 2010
• Graham C. Walker (born 1948), American biologist
• Graham Walker (footballer) (born 1935), former Australian rules footballer
• Graham Norton (born 1963), real name Graham Walker, comedian

• Walker (surname)