Alfa Romeo 33 is a small family car produced between 1985 and 1995.

Alfa Romeo 33 may also refer to:

Alfa Romeo Tipo 33, several sports car racing prototypes raced from 1967 to 1977 Alfa Romeo 33 Stradale, a rare road going sports car, 18 built from 1967 to 1969 Alfa Romeo 33 Stradale (2023), small homage series of 33 sports cars produced in 2023