Japan 
Japanese swimmerBirthdays by Profession
- Actor (8)
- Baseball player (7)
- Politician (6)
- Association football player (5)
- Seiyū (5)
- Tarento (4)
- Singer-songwriter (4)
- Singer (4)
- Musician (3)
- Athletics competitor (3)
- Military personnel (3)
- Swimmer (3)
- University teacher (3)
- Writer (3)
- Poet (3)
- Rugby union player (2)
- Tennis player (2)
- Physicist (2)
- Historian (2)
- Film director (2)
Birthdays by Region
- Tokyo (16)
- Kantō region (4)
- Hiroshima Prefecture (3)
- Kyōto Prefecture (3)
- Kanagawa Prefecture (3)
- Ōsaka Prefecture (3)
- Hyōgo Prefecture (2)
- Chiba Prefecture (2)
- Shiga Prefecture (2)
- Hokkaidō Prefecture (2)
- Akita Prefecture (2)
- Miyagi Prefecture (1)
- Aichi Prefecture (1)
- Aomori Prefecture (1)
- Ōita Prefecture (1)
- Yamagata Prefecture (1)
- Fukuoka Prefecture (1)
- Mie Prefecture (1)
- Tochigi Prefecture (1)
- Yamaguchi Prefecture (1)
