Quantico may refer to:
- Quantico (novel), a 2005 science fiction/thriller novel by Greg Bear
- Quantico, Maryland, an unincorporated community in Wicomico County, Maryland, United States
- Quantico, Virginia, a town in Prince William County located in Washington Metropolitan Area
- FBI Academy, the training site for new Special Agents of the United States Federal Bureau of Investigation
- Marine Corps Base Quantico, a major United States Marine Corps training base located near Triangle, Virginia
- Quantico Creek, a tidal tributary of the Potomac River located in eastern Prince William County, Virginia