There have been several historical figures named Glasscock:
- George Washington Glasscock, 19th century Texas settler
- Jack Glasscock (1859-1947), American baseball player
- William Ellsworth Glasscock, 20th century governor of West Virginia
It is also a placename:
- Glasscock County, Texas (named for George Washington Glasscock)
There also is the name Glascock with one S:
- Thomas Glascock, a soldier in the War of 1812 and U.S. representative from Georgia
- Glascock Prize, given in honor of poet Kathryn Irene Glascock
- Glascock County, Georgia (named for Thomas Glascock)
- John Glascock (1951-1979), bass guitarist with Jethro Tull