Letter: S
- sbcl-0.9.18-2: Steel Bank Common Lisp
- sbcl-1.0-1: Steel Bank Common Lisp
- sbcl-1.0.3-1: Steel Bank Common Lisp
- scilab-3.0-0.0: Scientific software package
- seamonkey-1.0.4-0.1: Web browser, e-mail, news, IRC client, HTML editor
- seamonkey-1.0.4-0.2: Web browser, e-mail, news, IRC client, HTML editor
- smpeg-0.4.4-0.fdr.4: MPEG library for SDL
- spamassassin-2.61-0.fdr.0.rh73: A spam filter for email which can be invoked from mail delivery agents.
- synaptic-0.47-0.fdr.4: Graphical frontend for APT package manager.
- synaptic-0.55.3-1.kde: Graphical frontend for APT package manager.
- synaptic-0.57.2-0.1.kde: Graphical frontend for APT package manager.