Niwa is a Japanese surname. Notable people with the surname include:
- Niwa clan, retainer clan of the Oda clan during the Sengoku period of Japan (1603 – 1868)
- Niwa Nagaaki, Daimyō of Nihonmatsu, 1796 – 1813
- Niwa Nagahide, Daimyō of Shirakawa
- Niwa Nagahiro, Daimyō of Nihonmatsu, 1868 – 1871
- Niwa Nagakuni, Daimyō of Nihonmatsu, 1858 – 1868
- Niwa Nagashige, Daimyō of Shirakawa, 1628 – 1638
- Niwa Nagatomi, Daimyō of Nihonmatsu, 1813 – 1858
- Akemi Niwa (丹羽 明美, born 1973), Japanese curler, 1998 Winter Olympics participant
- Daiki Niwa (footballer), Japanese footballer
- Hideki Niwa, Japanese politician
- Koki Niwa, Japanese table tennis player
- Mikiho Niwa, Japanese actress
- Niwa Mitsushige (丹羽 光重, 1622–1701), Japanese samurai and daimyō
- Ryuhei Niwa, Japanese footballer
- Shion Niwa (丹羽 詩温, born 1994), Japanese footballer
- Uichiro Niwa, Japanese diplomat and businessman
- Yasujiro Niwa, Japanese scientist
- Yuya Niwa, Japanese politician
This page lists people with the surname Niwa.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.