Siemens

• Siemens is a German family name carried by Peter von Siemens, Werner von Siemens, Wilhelm von Siemens
• Siemens AG is the name of a German electrical and telecommunications company, founded as a telegraph equipment manufacturer by Werner von Siemens as "Telegraphen-Bauanstalt von Siemens & Halske" in Berlin on October 12, 1847, now headquartered in Munich, also known as Siemens-Halske.
• the siemens is an SI derived unit of measurement for electric conductance, being the inverse of ohm, named after Werner von Siemens.