药用鼠尾草（学名：Salvia officinalis），《中国植物志》作「撒尔维亚」，是唇形科鼠尾草属的一种芳香性植物。常绿性小型亚灌木，有木质茎，叶子灰绿色，花蓝色至蓝紫色。原产于欧洲南部与地中海沿岸地区。药用鼠尾草有时也俗称「鼠尾草」，但容易与原产中国和日本的同属植物鼠尾草相混。

药用鼠尾草有许多不同的用途与功效，部份同属植物也有相同的效用，它常常栽培来做为厨房用的香草或医疗用的药草，有时也被称为庭园鼠尾草、厨房鼠尾草、达尔马希亚鼠尾草。在南欧，有时候也会种植一些和药用鼠尾草类似的植物，来做为香草与药草使用，这些和鼠尾草同属的植物常会和真的药用鼠尾草弄混淆。

Salvia officinalis (sage, also called garden sage, or common sage) is a perennial, evergreen subshrub, with woody stems, grayish leaves, and blue to purplish flowers. It is a member of the family Lamiaceae and is native to the Mediterranean region, though it has naturalized in many places throughout the world. It has a long history of medicinal and culinary use, and in modern times as an ornamental garden plant. The common name "sage" is also used for a number of related and unrelated species.