"Jokan" (written as "上官" or "政官") is the collective term for government officers who were mainly engaged in clerical work in the Daijokan (Grand Council of State) under the Ritsuryo system (a system of a centralized government based on the Ritsuryo Code).
政官（じょうかん・上官）とは、律令制の太政官の事務方官人の総称である。