Taking over from Raju Narisetti on June 1, Williams will be responsible for The Wall Street Journal Europe's coverage of Europe, the Middle East and Africa, and will report to managing director Paul Steiger.
Steiger said the Journal's outgoing editor, Narisetti, was one of the key architects for the newspaper's move to tabloid late last year and anticipates Williams will match his predecessor's commitment.
"Raju was instrumental in making the Journal Europe a more relevant, accessible publication to suit the changing needs of our busy, mobile readers. I'm confident Mike will continue the role with the same enterprise and initiative."
Williams joined The Wall Street Journal's Tokyo bureau in 1992 as news editor, and later became its Japanese economy and political correspondent. In 1996, he moved to New York to become assistant foreign editor, before returning to Japan as the Journal's Tokyo bureau chief in 1999.
Narisetti is leaving Dow Jones for the Hindustan Times Media group in India.
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