|Birth name||Hiro Yamamoto|
|Born||April 17, 1961|
|Origin||Richton Park, Illinois, United States|
|Genres||Grunge, alternative metal,|
|Labels||Sub Pop, A&M, SST|
Hiro Yamamoto (ヒロ・ヤマモト) (born April 13, 1961) is an American musician. He is a bassist. In 1984, he created the grunge band Soundgarden with Kim Thayil and Chris Cornell. He left the band in 1989. One year later, he started the independent rock band Truly with Screaming Trees drummer Mark Pickerel and Robert Roth from The Storybook Krooks.