Franklin High School is a public high school located in Reisterstown, Maryland, United States, an old historic town in the now northwestern suburbs of the modern City of Baltimore in Baltimore County, Maryland.

Four grammar schools were initially established that year, two in each side of the city, with one for boys and one for girls.

In October 1839, the "High School" for Baltimore opened with 46 boy students and one teacher/professor in a rented townhouse on Courtland Street (now St. Paul Street and Place) near East Saratoga Streets (now the location of "Preston Gardens" and nearby Mercy Hospital, now Mercy Medical Center) The High School moved several times in its first five years, and finally settled and went through three major sites/buildings in its now 175-year history.

It was joined after 1937 by "Paul Laurence Dunbar Community High School" in East Baltimore and Orleans Street near North Central Avenue.

Around 1925, also a "Colored" Vocational High School was started in several "hand-me-down" buildings until 1955 when a new, well-equipped structure was built at Presstman Street near North Bentalou Street, also in West Baltimore for the newly renamed "George Washington Carver Vocational-Technical High School".

The original Franklin Academy private school building was built on Cockeysmill Road, where the Reisterstown branch of the Baltimore County Public Library is now located.

Of these three buildings, only the 1914/1930 brick structure still stands on Main Street in Reisterstown, currently housing Franklin Middle School.

Franklin High School was moved to a more modern building in 1960 about a mile down the road, where it remains to this day.

[1] Franklin High School has won the following State Championships: Football Boys Basketball Girls Indoor Track Wrestling Baseball Softball