Tetsu is a Japanese given name, usually for males.
People named Tetsu include the following:
Tetsu Ohara, a designer and a professor in NYC
Tetsu Inada (born 1972), a Japanese voice actor
Tetsu Inoue, an ambient-music artist
Tetsu Katayama (1887–1978), Japan's 46th Prime Minister
Tetsu Sawaki (born 1982), an actor
Tetsu Shiratori (born 1972), a Japanese voice actor
Tetsu Takano (born 1972), a musician
Tetsu Yamauchi (born 1946), real name Tetsuo Yamauchi, musician
Tetsu Yano (1923–2004), a science-fiction translator and writer
Tetsuya (born 1969), formerly known as Tetsu, a musician
Tetsuzō Iwamoto (1916–1955), Sub-Lieutenant fighter plane ace during World War II
