Kensuke Tanaka (田中 賢介, born May 20, 1981) is a Japanese former professional baseball second baseman.

Tanaka played for the Hokkaido Nippon-Ham Fighters of Nippon Professional Baseball (NPB) from 2000 through 2012.

Tanaka made his Major League debut with the San Francisco Giants, in left field, on July 9, 2013, against the New York Mets despite playing almost exclusively second base with the Hokkaido Nippon-Ham Fighters and the Giants' Triple–A affiliate, the Fresno Grizzlies.

[3] He played in 62 games for the Triple–A Round Rock Express in 2014, batting .258/.340/.371 with four home runs, 27 RBI, and 12 stolen bases.

[4] Tanaka is married to Japanese Sapporo TV reporter Chiho Nishimori (西森千芳).