Bjorn Thorsrud (October 7, 1963 – October 19, 2021) was an American music producer, programmer, and audio engineer who produced film scores and albums for rock and pop artists. He also engineered, mixed, or contributed production or programming to every Smashing Pumpkins record from 1998's Adore to 2012's Oceania. He previously worked for the Taj-Motown Record Company and established his own record label, Tri Records. He held a bachelor's degree in physics and music from the University of Nevada, Reno. He lived in his hometown of Las Vegas, Nevada.