John Sinnott (disambiguation)

John Sinnott (1829–1896) was an Irish recipient of the Victoria Cross.

John Sinnott may also refer to:
 * John Sinnott (American football) (born 1958)
 * John Sinnott (politician) (1905–1960), Canadian MP
 * John Sinnott SJ (active 1948), rector of Beaumont College, Berkshire, England
 * John T. Sinnott (born 1948), American physician, scientist, and business executive