People with the last name Kasai in Washington
- Akiko Kasai
- Ayako Kasai
- Fuki Kasai
- George Kasai
- Hiroko Kasai
- Hiromi Kasai
- Kayoko Kasai
- Kaytee Kasai
- Kenji Kasai
- Kenneth Kasai
- Manabu Kasai
- Masatoshi Kasai
- Mika Kasai
- Nobuaki Kasai
- Nobuko Kasai
- Paige Kasai
- Takahiro Kasai
- Takashi Kasai
- Toshimobu Kasai
- Toshio Kasai
- Yoko Kasai
- Yoshiko Kasai
- Yutaka Kasai
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