Meaning of Dory. French name. In French, the name Dory means-Blonde.. Other origins for the name Dory include-French, Greek.The name Dory is most often used as a girl name or female name.French Name Meaning-Blonde.Origin-French. Alternate Origins-Greek.ther origins for the name Dory include-French, Greek.The name Dory is most often used as a girl name or female name. French Name Meaning-Blonde.