Letter: X
- xcpc - A portable Amstrad CPC464/CPC664/CPC6128 Emulator written in C
- xmms-uade - Unix Amiga DeliTracker Emulator XMMS plug-in
- xmms2-mac - XMMS2 plugin for APE audio format
- xmms2-nonfree - Nonfree plugins for XMMS2
- xmms2-sid - XMMS2 plugin for SID audio format
- xorg-x11-drv-catalyst - AMD's proprietary driver for ATI graphic cards
- xorg-x11-drv-catalyst-devel - Development files for xorg-x11-drv-catalyst
- xorg-x11-drv-catalyst-libs - Libraries for xorg-x11-drv-catalyst
- xorg-x11-drv-nvidia - NVIDIA's proprietary display driver for NVIDIA graphic cards
- xorg-x11-drv-nvidia-173xx - NVIDIA's 173xx serie proprietary display driver for NVIDIA graphic cards
- xorg-x11-drv-nvidia-173xx-devel - Development files for xorg-x11-drv-nvidia-173xx
- xorg-x11-drv-nvidia-173xx-libs - Libraries for xorg-x11-drv-nvidia-173xx
- xorg-x11-drv-nvidia-devel - Development files for xorg-x11-drv-nvidia
- xorg-x11-drv-nvidia-libs - Libraries for xorg-x11-drv-nvidia
- xrick - A clone of the game Rick Dangerous
- xsnow - An X Window System based dose of Christmas cheer
- xv - Interactive image display program for X
- xv-doc - Manuals in various formats for the xv image viewer