Katsuhiko Taguchi (田口 勝彦, Taguchi Katsuhiko, born 7 February 1972 in Okayama Prefecture) is a Japanese rally driver.

In 1999 he won the Asia-Pacific Rally Championship (APRC).

In 2001 he competed on the Cyprus Rally as part of the factory Mitsubishi Ralliart team.

He finished eighth overall on the 2007 Rally Japan, winning the Group N category and scoring one WRC point.

In 2010, he won the APRC title again.