Max Wien (1866 – 1938) was a German physicist and the director of the Institute of Physics at the University of Jena. He was born in Königsberg, Prussia.

He invented the "Löschfunkensender" (generator of slightly weakened electromagnetic oscillations, used for example, on the RMS Titanic) during the years 1906 to 1909 and the Wien bridge oscillator in 1891. At that time, Wien did not have a means of developing electronic gain so a workable oscillator could not be achieved (William Hewlett, co-founder of Hewlett-Packard, was successful in 1939).

Erwin Schrödinger in his autobiography "Mein Leben, Meine Weltansicht" described Wien as "moderately anti-semitic".

He died in Jena, Germany.

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