Kokushi can refer to:
- Kokushi (governors) 国司 - provincial governors appointed by the imperial court
- Kokushi clan 国司家
- Kokushi (masters) 国師 - roughly, "national master." A title given to Buddhist masters denoting particular national prominence, or to figures who serve as tutors or advisors to rulers or their heirs
- Daitô Kokushi 大燈国師 (1282-1337), Zen master
- Kokushi 国史 - lit. "national history"
- Shô Kokushi 向克祉 aka Nakijin Chôyô (1582-1609)