By Rex, you may be looking for:
- Generator Rex, the animated series.
- Rex Salazar, the main character of the Generator Rex series.
- Rex Salazar's relationships, a list of Rex's relationship with others close to him.
- Rex Salazar's machines, a list of Rex's machines that he can build at will with his nanites.
- Rex Salazar, the main character of the Generator Rex series.
- Rex Salazar (Reboot), the Ben 10 (2016) iteration of the character.
- M. Rex, the original comic that inspired the animated series.
- Rex (M. Rex), main character of the M. Rex comic series.