Feshbach is a name of German origin. It may refer to:
People Herman Feshbach (1917–2000), American physicist Jessica Feshbach (born 1975), American Scientologist Murray Feshbach (1929–2019), American demographer
Science Herman Feshbach Prize in Theoretical Nuclear Physics, named for the physicist Feshbach resonance, a resonance between slow atoms
See also Fischbach (surname)