Nagai (surname)
Nagai is a Japanese surname. Notable people with the surname include:
- Fujio Nagai, Japanese boxer
- Hazuki Nagai, Japanese field hockey player
- Go Nagai, Japanese manga artist
- Jun Nagai, Japanese middle-distance runner
- Kafū Nagai, Japanese novelist, playwright, essayist, and diarist
- Kenji Nagai, Japanese journalist, killed in Myanmar
- Kensuke Nagai, Japanese footballer
- Koji Nagai, Japanese businessman, CEO of Nomura Holdings
- Michiko Nagai, Japanese writer
- Ryo Nagai, Japanese footballer
- Shunta Nagai, Japanese footballer
- Tatsuo Nagai, Japanese writer
- Takashi Nagai, Japanese radiologist and Catholic writer
- Yasutomo Nagai, Japanese motorcycle racer
- Yuri Nagai, Japanese field hockey player
