Isao Hayashi (????, Hayashi Isao, May 11, 1912—September 29, 1995) was a Japanese popular music and military music singer and composer.
He took part in the Japan's famous year-end show Kohaku Uta Gassen eleven times.
One of well-known songs composed by him is the military song "Shussei Heishi o Okuru Uta" (????????, "Song for Giving Warriors a Send-off"), which propaganda vehicles of uyoku dantai have aired in Japan.