Douglas Wayne Sahm (November 6, 1941 – November 18, 1999), was an American musician from Texas. Born in San Antonio, Texas, he was a child prodigy in country music but became a significant figure in blues rock and other genres. Today, Sahm is considered one of the most important figures in what is identified as Tejano music. He was the founder and leader of the 1960s rock and roll band, the Sir Douglas Quintet. He would later co-found the Texas Tornados with Augie Meyers, Freddy Fender, and Flaco Jimenez as well as Los Super Seven.