SZA may refer to:

SZA (singer), American singer and songwriter

SZA microcar, made by the Soviet manufacturer SeAZ, in the SMZ cycle-car series

Schizoaffective disorder, a psychiatric diagnosis with symptoms of a mood disorder and schizophrenia

Solar zenith angle, in astronomy and earth science

Soyo Airport, in Angola (IATA airport code SZA)

Sunyaev–Zel'dovich Array, an array of telescopes