Hoag is a surname. Notable people with the surname include:
Arthur Allen Hoag (1921–1999), American astronomerBob Hoag (contemporary), American record producer and songwriterCharles Hoag (1808–1888), American scholar and teacher; first school master of Minneapolis, MinnesotaCharlie Hoag (1931-2012), American professional basketball playerDutch Hoag (contemporary), American race car driverElizabeth Gorham Hoag (1857–1875), American sorority sister; founding member of Sigma KappaHarold Hoag (b. 1966), American professional wrestlerJan Hoag (b. 1948), American film and television actressJudith Hoag (b. 1968), American actressMyril Hoag (1908–1971), American professional baseball playerRyan Hoag (b. 1979), American professional football playerTami Hoag (b. 1959), American author of romance novelsTruman H. Hoag (1816–1870), American politician from Ohio; U.S. representative 1869–70