Harford Lutheran School was a private secondary school located in Bel Air, Maryland, United States.

The school was operated by the Baltimore Lutheran High School Association, an association of Lutheran churches in the Baltimore area.

[1] The Association opened its first campus, Baltimore Lutheran School, in suburban Towson in 1965.

Harford Lutheran School had students from grades 6 through 12.

Harford Lutheran closed in June 2009, with only one graduating class.