William Frederick Schelter (1947[1] – July 30, 2001) was a professor of mathematics at The University of Texas at Austin and a Lisp developer and programmer.
Schelter authored Austin Kyoto Common Lisp (AKCL) under contract with IBM.
He is also credited with the first port of the GNU C compiler to the Intel 386 architecture, used in the original implementation of the Linux kernel.
His mathematical specialties were noncommutative ring theory and computational algebra and its applications, including automated theorem proving in geometry.
In the summer of 2001, age 54, he died suddenly of a heart attack while traveling in Russia.