Borrowed from Japanese 安井 or 安居 (Yasui).
Yasui (plural Yasuis)
- A surname from Japanese.
- 2012, Karen Latchana Kenney, Korematsu v. the United States: World War II Japanese-American Internment Camps, ABDO Publishing Company, 89:
- Minoru Yasui was a trained army officer with a legal education who worked in the Japanese consular office.