侍酒师（法语：sommelier（发音 /sɔməˈlje/ or suh-mal-'yAy），英语：wine steward，女侍酒师sommelière）受过专业的训练，拥有对酒类广泛的知识，专精于各式酒类服务，主要是在高级餐厅中服务，能将餐点与葡萄酒做完美的搭配。他们的专业与教养比wine waiter更高。

侍酒师主要的工作是酒的采购、贮藏和看管酒窖。他们也负责酒单的安排、酒的递送、服务、训练餐厅的其他服务人员。他们和餐厅的烹饪团队一同工作，搭配最适合各式不同餐点及其特性的酒。侍酒师可能会与行政主厨或主厨（chef de cuisine）在今日餐点的搭配上产生争议。一位专业的侍酒师在餐厅楼面工作并直接与餐厅的老板联系。侍酒师根据顾客偏爱的食物和预算来搭配餐点与酒。

A sommelier (/ˈsɒməljeɪ/ or /sʌməlˈjeɪ/; French pronunciation: ​[sɔməlje]), or wine steward, is a trained and knowledgeable wine professional, normally working in fine restaurants, who specializes in all aspects of wine service as well as wine and food pairing. The role is much more specialized and informed than that of a wine waiter in fine dining today. It is opined by Sommeliers Australia that the role is strategically on a par with that of the executive chef or chef de cuisine.