William Holland
William, Will, Bill, or Billy Holland may refer to:
Politicians
- William Holland (merchant), English merchant and MP for Dartmouth
- William Holland (politician), Irish-born farmer and politician in Nova Scotia
- William H. Holland (politician), member of the Fifteenth Texas Legislature
- William Holland, 1st Baron Rotherham, British industrialist and politician
Sportsmen
Baseball
- Will Holland (baseball, born 1862)
- Will Holland (baseball, born 1998)
- Billy Holland (baseball), pitcher, Negro league career 1894–1908
- Bill Holland (right-handed pitcher), pitcher, Negro leagues career 1920–1941
- Bill Holland (left-handed pitcher), pitcher, Major League career 1939
Other sports
- Bill Holland (sprinter), track and field athlete
- Bill Holland, American racing driver
- Bill Holland (basketball), American professional basketball player
- Billy Holland, Irish rugby union player
Others
- William Holland (diarist), English diarist
- William Holland (publisher), British radical, author and publisher
- William Holland (stained glass maker), British maker of stained glass
- William Jacob Holland, zoologist and paleontologist
- William L. Holland, Institute of Pacific Relations
- Will Holland, musician