וּבְנֵ֖י גֹּ֑מֶר אַשְׁכֲּנַ֥ז וְרִיפַ֖ת וְתֹגַרְמָֽה׃
Radak on Genesis
ובני גמר אשכנז, people say that this refers to the people living in Germany.
Radak on Genesis
וריפה according to Rabbeinu Saadyah gaon these are the Gauls living in France; in Chronicles I 1,6 they are called דיפת.