Greg Sage (born 1952) is an American songwriter, guitarist, and vocalist, regarded as an important influence on many punk rock and post-punk artists. Between 1977 and 1988, Sage was the principal songwriter of the influential Portland, Oregon-based band Wipers.

The mood of Sage's lyrics is frequently dark, and rife with references to confusion and severe alienation. His song structures often take unexpected turns and are typified by fractured melodic passages punctuated by massive, intricate guitar parts, usually played on a Gibson SG.