Zehnder is a German-language surname, mostly Swiss in origin:
*
Zehnder (surname)
It may also refer to the following:
*
Conley–Zehnder theorem, a mathematical theorem named after Charles C. Conley and Eduard Zehnder
*
Mach–Zehnder interferometer
The Mach–Zehnder interferometer is a device used to determine the relative phase shift variations between two collimated beams derived by splitting light from a single source. The interferometer has been used, among other things, to measure p ...
, a device used in physics
*
Egon Zehnder
Egon Zehnder is a global management consulting and executive search firm. Egon Zehnder is the world's largest privately held executive search firm and the third largest executive search and talent strategy firm globallywith an annual revenue of ...
, a global executive search firm based in Switzerland
*
Zehnder Confair, American politician
*
Zehnder's, a large restaurant in Frankenmuth, Michigan
{{disambig