In the schools operated by Gakko hojin Keio Gijuku including Keio University, only Yukichi FUKUZAWA, the founder, has been traditionally called 'Fukuzawa sensei' with a title for teachers, and the others, including teachers and students, have been officially called with a casual title 'kun.'
慶應義塾大学をはじめとする学校法人慶應義塾の運営する学校では、創立者の福澤諭吉のみを「福澤先生」と呼ぶ伝統があり、他は教員も学生も公式には「○○君」と表記される。