Gryazi () is a town and the administrative center of Gryazinsky District in Lipetsk Oblast, Russia, located on the Matyra River (left tributary of the Voronezh; Don's basin)  southeast of Lipetsk, the administrative center of the oblast.
Gryazi () is both a town and the administrative hub of Gryazinsky District within Lipetsk Oblast, Russia. It lies on the Matyra River, which is a tributary of Voronezh and part of the Don's basin, southeast of Lipetsk, the oblast's capital.