Thomas Walker Rush (born February 8, 1941) is an American folk and blues singer, guitarist, and songwriter whose success helped launch the careers of other singer-songwriters in the 1960s and who has continued his own singing career for 60 years.

Rush was born in Portsmouth, New Hampshire, United States, the adopted son of a teacher at St. Paul’s School, in Concord, New Hampshire. He began performing in 1961 while studying at Harvard University, after having graduated from the Groton School. He majored in English literature. His early recordings include Southern and Appalachianfolk and old-time country songs, Woody Guthrie ballads and acoustic-guitar blues such as Jesse Fuller‘s San Francisco Bay Blues which appeared on his first two LPs. He regularly performed at the Club 47 coffeehouse (now called Club Passim) in Cambridge, the Unicorn in Boston, and The Main Point in Bryn Mawr, Pennsylvania. In the 1970s, he lived in Deering, New Hampshire. As of 2023, Rush lives in the North Shore region of Massachusetts not far from his New Hampshire birth place.