Japan 
Japanese swimmerBirthdays by Profession
- Singer (12)
- Actor (10)
- Association football player (9)
- Baseball player (5)
- Writer (4)
- Singer-songwriter (3)
- Swimmer (3)
- Mangaka (2)
- Composer (2)
- Speed skater (2)
- Seiyū (2)
- Lyricist (2)
- Music arranger (2)
- Dancer (2)
- Rikishi (2)
- Businessperson (2)
- Novelist (2)
- Explorer (2)
- Fashion model (1)
- Volleyball player (1)
Birthdays by Region
- Tokyo (10)
- Ōsaka Prefecture (5)
- Aichi Prefecture (4)
- Kanagawa Prefecture (4)
- Shizuoka Prefecture (4)
- Kyōto Prefecture (3)
- Kantō region (2)
- Hiroshima Prefecture (2)
- Hokkaidō Prefecture (2)
- Fukuoka Prefecture (2)
- Kumamoto Prefecture (2)
- Fukui Prefecture (2)
- Ehime Prefecture (2)
- Gunma Prefecture (2)
- Nara Prefecture (1)
- Miyagi Prefecture (1)
- Nagano Prefecture (1)
- Tottori Prefecture (1)
- Gifu Prefecture (1)
- Fukushima Prefecture (1)
Birthdays by Place
- Tokyo (5)
- Ōsaka Prefecture (3)
- Kyoto (3)
- Hiroshima (2)
- Fukui (2)
- Ōsaka (2)
- Kanagawa Prefecture (2)
- Setagaya-ku (1)
- Gunma Prefecture (1)
- Ehime Prefecture (1)
- Chigasaki (1)
- Wakamatsu-ku (1)
- Mishima (1)
- Yokohama (1)
- Kanazawa (1)
- Tottori Prefecture (1)
- Shinano Province (1)
- Sōka (1)
- Shizuoka (1)
- Kumamoto (1)
