Halethorpe is an unincorporated community in Baltimore County, Maryland, United States.

The community is considered to be a sub-section of Arbutus by the United States Census Bureau.

The Clipper City Brewing Company, the brewer of Heavy Seas Beer, is located on Hollins Ferry Road in Halethorpe.

A stop on the MARC Penn Line on Southwestern Boulevard serves the Halethorpe-Arbutus community.

Halethorpe was the site of the Baltimore and Ohio Railroad's 1927 centenary celebration, the Fair of the Iron Horse.