Randallstown is an unincorporated community and census-designated place in Baltimore County, Maryland, United States. It is named after Christopher and Thomas Randall, two 18th-century tavern-keepers. At that time, Randallstown was a tollgate crossroads on the Liberty Turnpike, a major east–west thoroughfare. It is a suburb of Baltimore, with a population of 33,655 as of the 2020 census. As of 2020 it was 72 percent African American. In the 1990s, Randallstown transitioned to a majority African American community.

Randallstown High School is a public high school located in Baltimore County, Maryland, United States. It serves students in the Randallstown, Woodlawn, and Owings Mills areas. It is a part of Baltimore County Public Schools. Its primary feeder schools are Deer Park Middle Magnet School, Woodlawn Middle School, Sudbrook Magnet Middle School, Southwest Academy Middle School, Windsor Mill Middle School and Northwest Academy of Health Sciences.