Johannes Balthasar Brøndsted (5 October 1890 - 16 November 1965) was a Danish archaeologist and prehistorian.

He was a professor at the University of Copenhagen and director of the National Museum of Denmark.

In 1922 and 1922, he worked in the field with Ejnar Dyggve (1887–1961) and excavated early Christian monuments in Dalmatia.

He was a co-founder of the peer-reviewed academic journal Acta Archaeologica and editor-in-chief (1930–1948).

[3] From 1941 through 1951, Brøndsted was a professor of Nordic archeology and European prehistory at the University of Copenhagen.