Baldus is both a surname and a given name. Notable people with the name include:
- Baldus de Ubaldis, Italian jurist
- Alvin Baldus (1926–2017), American politician
- Edouard Baldus, French photographer
- Marc Baldus, physicist
- Wolfgang Baldus, German philatelist and writer
Other
edit- Baldus (bug), a genus of bugs in the family Coreidae