The Sykesville Historic District encompasses the center of Sykesville, Maryland. Sykesville is a small incorporated town in the Patapsco River valley in southern Carroll County, Maryland, and is located on the old main line of the Baltimore and Ohio Railroad (B&O), one of the first railroad lines in the United States, that section dating from 1831. The B&O train station is included in the district, next to the river. It was designed by E. Francis Baldwin in the Queen Anne style and built in 1883. It is currently a restaurant having outdoor seating on the original platform (only goods trains now pass). Other historically significant buildings in the district were built between the 1850s and the 1920s.

• Salopha (Sykesville, Maryland)

• Sykesville Historic District, Carroll County, including photo in 2002, at Maryland Historical Trust
• Sykesville Historic District boundary map
• Town of Sykesville Website, Carroll County, includes history of Sykesville up to July 12, 2012
• Historic American Engineering Record (HAER) No. MD-19, "Baltimore & Ohio Railroad, Sykesville Station, West Side of Main Street, Sykesville, Carroll County, MD", 1 photo, 1 photo caption page
• Sykesville Historic District Nomination Form from Maryland State Archives