John Martinez may refer to:

• John Arthur Martinez (born 1961), American country music singer-songwriter
• Buck Martinez (John Albert Martinez, born 1948), former Major League Baseball catcher and manager

• Jean Raikem
• Jean Ralaimongo
• Jean Ramadier
• Jean Rameau
• Jean Ramez
• Jean Ranc
• Jean Raoux (soldier)
• Jean Raphael Vanderlei Moreira
• Jean Rasey
• Jean rasey
• Jean Ray (disambiguation)
• Jean Ray (musician)
• Jean Redele
• Jean Reinhardt
• Jean Remy
• Jean-Remy Ayoune
• Jean Remy Ayoune
• Jean Remy Moet
• Jean Renart
• Jean Renaud
• Jean Renaud de Segrais
• Jean-Renaud Nemouthe
• Jean Renaut
• Jean-Rene
• Jean Rene Baroux