Pyx or PYX may refer to:
PyX (vector graphics language), vector graphics library The Pyx, a 1973 Canadian film Pyx, a host container Trial of the Pyx, a UK quality assurance procedure for newly minted coins Pyx Lax, a Greek rock band Pyxis, a constellation, abbreviated as Pyx PYX, IATA airport code for Pattaya Airpark in Thailand, in List of airports by IATA code: P .pyx, a file extension used to write Python code in C using Cython