People with the last name Watanuki in Illinois
- Cliff Watanuki
- Dorothy Watanuki
- Eddie Watanuki
- Florence Watanuki
- Gary Watanuki
- George Watanuki
- Hiroko Watanuki
- Jimmie Watanuki
- Joy Watanuki
- Kumiko Watanuki
- Lei Watanuki
- Mia Watanuki
- Misskumiko Watanuki
- Miwako Watanuki
- S Watanuki
- Yoko Watanuki
- Yoshihisa Watanuki
- Yuichi Watanuki
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