Hartman Bache (September 3, 1798 – October 8, 1872) was an American military engineer who participated in the construction of many of the earliest lighthouses on the West Coast.

Despite his low class rank (19th out of 23), he was immediately commissioned as a Captain in the Corps of Topographical Engineers.

[2] At the start of the Civil War in 1861, Bache was a lighthouse engineer with the rank of major.

Shortly afterwards, he succeeded John James Abert as Chief of Topographical Engineers, spending much of the war serving on the East Coast.

This article about a United States engineer, inventor or industrial designer is a stub.