Rex Mix is an EP remix recorded by Argentine rock band Soda Stereo.

The EP contains remixes and new arrangements of previous songs, two songs recorded live at Gran Rex Theatre in Buenos Aires (Hombre al agua, and No Existes), and one new track: No necesito verte (para saberlo).

Track listing was different in all 3 formats (12", cassette and CD), with four songs on the 12" and six on tape.

It was the last Soda Stereo record to be commercially released on vinyl in Argentina.

Any Argentinian Soda vinyl releases after this one were pressed in minimal quantities as promos.