Cześnik ("cup-bearer") was until the end of the 13th Century a court office in Poland. Responsible for the wine-cellar of the King and for serving him cups with wine on banquets. Since the 14th Century a honorable title in Polish-Lithuanian Commonwealth.

• Cześnik wielki koronny - Great King's Cup-Bearer of the Crown
• Cześnik wielki litewski - Great King's Cup-Bearer of Lithuania
• Cześnik ziemski - District King's Cup-Bearer

According to the office hierarchy in 1768, his position in the Crown was over Łowczy and under Podstoli. In the Grand Duchy of Lithuania over Horodniczy and under Podczaszy.