Carl Siemens
Carl Siemens is the name of the following people:
- Carl Friedrich von Siemens (1872–1941), German industrialist
- Carl Georg Siemens (1809–1885), German technologist and university professor
- Carl Heinrich von Siemens (1829–1906), German industrialist
- Carl Wilhelm Siemens (1823–1883), German-British industrialist
