S
- Bob Sabiston - Rotoshop, interpolating rotoscope animation software
- Muni Sakya - Nepalese software
- Carl Sassenrath - Amiga, REBOL
- Chris Sawyer - Developer of Roller Coaster Tycoon and the Transport Tycoon series
- Bill Schelter - GNU Maxima, GNU Common Lisp
- Randal L. Schwartz - Just another Perl hacker
- Adi Shamir - co-creator of RSA algorithm (the S in the name stands for Shamir)
- Mike Shaver - Founding member of Mozilla Organization
- Cliff Shaw - IPL, the first AI language
- Zed Shaw - Wrote the Mongrel Web Server, for Ruby web applications.
- Emily Short - prolific writer of Interactive fiction and co-developer of Inform version 7
- Jacek Sieka - Developer of DC++ an open-source, peer-to-peer file-sharing client
- Ken Silverman - creator of Duke Nukem 3D's graphics engine
- Charles Simonyi - Hungarian notation, Microsoft Word
- Colin Simpson - developer of CircuitLogix simulation software
- Rich Skrenta - co-founder of Open Directory Project
- Matthew Smith - Sinclair ZX Spectrum games, including Manic Miner and Jet Set Willy
- Henry Spencer - C News, Regex
- Joel Spolsky - Co-founder of Fog Creek Software and Stack Overflow
- Quentin Stafford-Fraser - author of original VNC viewer, first Windows VNC server, client program for the first webcam
- Richard Stallman - Emacs, GCC, GDB, founder and pioneer of GNU Project, terminal-independent I/O pioneer on ITS, Lisp machine manual
- Guy Steele - Common Lisp, Scheme, Java
- Alexander Stepanov - Creator of Standard Template Library
- Ludvig Strigeus - Creator of uTorrent, OpenTTD, ScummVM and the technology behind Spotify
- Bjarne Stroustrup - Creator of C++
- Zeev Suraski - co-creator of PHP language
- Gerald Jay Sussman - Scheme
- Herb Sutter - Chair of the ISO C++ standards committee and C++ expert.
- Tim Sweeney - The Unreal engine, UnrealScript, ZZT
Read more about this topic: List Of Programmers