Phlox sibirica, the Siberian phlox, is a species of flowering plant in the family Polemoniaceae, native to eastern European Russia, most regions of Siberia, northern parts of the Russian Far East, Mongolia, and Alaska.
Phlox sibirica is a rhizomatous geophyte with flowers that vary from white to a pale blue-violet. A perennial with a cushion-like growth form, it reaches about .