A cup-bearer was historically an officer of high rank in royal courts, whose duty was to pour and serve the drinks at the royal table. On account of the constant fear of plots and intrigues (such as poisoning), a person must have been regarded as thoroughly trustworthy to hold the position. He would guard against poison in the king's cup, and was sometimes required to swallow some of the drink before serving it. His confidential relations with the king often gave him a position of great influence. The position of cup-bearer has been greatly valued and given only to a select few throughout history.

The cup-bearer as an honorific role, for example as the Egyptian hieroglyph for "cup-bearer," was used as late as 196 BC in the Rosetta Stone for the Kanephoros cup-bearer Areia, daughter of Diogenes; each Ptolemaic Decree starting with the Decree of Canopus honored a cup-bearer. A much older role was the appointment of Sargon of Akkad as cup-bearer in the 23rd century BC.