Bodo Heinrich Justus Ebhardt (5 January 1865, Bremen – 13 February 1945 at Marksburg near Braubach) was a German architect, architectural historian, castle explorer, and founder and longtime president of the German Castles Association (Deutsche Burgenvereinigung).
After graduation he was a commercial apprentice in Magdeburg and Bremen from 1880, but soon gave up this job against the wishes of his parents to self-educate and attended lectures in Berlin.
As a castle researcher and restorer, he won the friendship of Kaiser Wilhelm II.
Ebhardt was a professor and court architect, in 1909 honorary citizen of Braubach, and in 1928 was a founding member of the Association of Friends of Plassenburg.
An extensive list of the writings critically annotated by Ludger Fischer can be found in the publication Burgenromantik und Burgenrestaurierung um 1900.