Meaning A boy's name of English origin, it means "Diminutive of Reginald: Mighty counselor-ruler. Form of Reynold." Origin of Reg English +-100%Zoom level changed to 1 Popular Middle Names Thomas Pronunciation 🔊 Listen Reg Similar Names Ronal Ronell Ronnell Ronn Reynaldo Eric Renaldo Reynald Richie Roarke Year by Year Popularity of Reg