There are several people with the name Michael Walker:
- Michael Walker (actor), an actor; son of Robert Hudson Walker, & brother of actor Robert Walker, Jr.
- Michael Walker (politician), a councillor in Canada who advocates a Province of Toronto
- Michael Walker (economist), a Canadian economist who founded the Fraser Institute
- Michael Walker (film director), a film director who wrote and directed the psychological thriller Chasing Sleep
- Michael Walker, Baron Walker of Aldringham, the former British Chief of the Defence Staff
- Michael Walker (jockey), a New Zealand jockey
- Michael Anthony Walker, the son of spy John Anthony Walker, who played a role is his father's spy ring
- Michael Walker (scientist), a pharmacologist at the University of British Columbia, who founded Rhythm Search Developments Ltd. (now Cardiome), and Rhinopharma Ltd.
- Michael Walker (educator), headmaster of King Edward VI Grammar School in Chelmsford
- Michael Walker (tennis), a tennis pro in the 1980s who represented Hong Kong in Davis Cup
- Michael Walker, a US custom knifemaker who invented the Walker Linerlock mechanism
- Michael Francis Walker, also known as Michael Esdale Walker, author, commentator, playwright, who went to Ampleforth (Dunstan's 1972).


