Koyama
- 3383 Koyama
- Akiko Koyama
- Andy Koyama
- Chire Koyama
- Hikaru Koyama
- Hiroshige Koyama
- Hisako Koyama
- Keiichiro Koyama
- Kenji Koyama
- Kimiko Koyama
- Kiyoshige Koyama
- Kosuke Koyama
- Koyama (island)
- Koyama Press
- Koyama Station
- Koyama's spruce
- Kōyama, Kagoshima
- List of most common surnames in Asia
- Mami Koyama
- Masaaki Koyama
- Miki Koyama
- Momoyo Koyama
- Oyama (disambiguation)
- Remi Koyama
- Rikiya Koyama
- Seijirō Kōyama
- Shin-ya Koyama
- Shinichiro Koyama
- Takaharu Koyama
- Takao Koyama
- Takuto Koyama
- Tetsuo Michael Koyama
- Tomoaki Koyama
- Tomoyoshi Koyama
- Tsutomu Koyama
- Yasuo Koyama
- Yuki Koyama
- Yū Koyama