Eötvös is an old spelling of the Hungarian word ötvös, meaning "gold- and silversmith".
Eötvös can refer to one of several Hungarian people:
József Eötvös (1813, Buda - 1871), a Hungarian statesman and author
Loránd Eötvös (1848 - 1919), a Hungarian physicist
Zoltán Eötvös (1891, Tokaj - 1936), a Hungarian speed skater
Péter Eötvös (born 1944, Odorheiu Secuiesc), composer and conductor
József Eötvös (musician) (born 1962, Pécs), a Hungarian guitar player
Fülöp Ö. Beck (Hungarian: Beck Ötvös Fülöp; 1873, Pápa - 1945, Budapest), a Hungarian sculptor, medal maker
Jim Otvos
Eötvös can also refers to several concepts and a place, all named for Loránd Eötvös:
an eotvos (unit), a unit of gravitational gradient
the Eötvös effect, a concept in geodesy
the Eötvös experiment, an experiment determining the correlation between gravitational and inertial mass
the Eötvös number, a concept in fluid dynamics
the Eötvös (crater) on the moon
the Eötvös rule for predicting surface tension dependent on temperature