Ishiguro (石黒 "black stone") is a Japanese surname.
The following notable people are among those who have this surname:
- Aya Ishiguro (石黒彩), a.k.a. Ayappe, a singer
- Hideo Ishiguro (石黒英雄), a Japanese actor
- Hiroshi Ishiguro (石黒浩), a professor at Osaka University who works in robotics
- Kazuo Ishiguro (石黒一雄), a British author
- Keishichi Ishiguro (石黒敬七), a Japanese judoka
- Keisho Ishiguro (石黒敬章), a Japanese photo collector
- Ken Ishiguro (石黒賢), a Japanese actor
- Kenji Ishiguro (石黒健治), a renowned Japanese photographer
- Masakazu Ishiguro (石黒正数), a Japanese tennis manga artist
- Masayuki Ishiguro (石黒将之), a Japanese handball player who plays in German
- Noboru Ishiguro (石黒昇), a Japanese animator and anime series director
- Osamu Ishiguro (石黒修), a Japanese tennis player
- Tatsuya Ishiguro (石黒竜也), a Japanese kickboxer
- Yumiko Ishiguro (石黒由美子), a Japanese synchronized swimmer
There is also an asteroid:
- 7354 Ishiguro