The Herring Run is an 11.1-mile-long (17.9 km)[1] tributary of the Back River located in Baltimore, Maryland.

The total length of the Herring Run main stem and tributaries is over 41 miles (66 km).

[4] The land for Herring Run Park was donated to the City of Baltimore by the real estate developer Frank Novak.

[5] The Maryland Department of the Environment has listed the Herring Run as an impaired tributary, due to the elevated amounts of fecal coliform bacteria found in it.

Designed by Ziger/Snead Architects and built by Baltimore Green Construction, the Watershed Center was the first LEED-NC building in Baltimore City, winning a "Gold" designation from the United States Green Building Council.