Letter: X
- xcpc - A portable Amstrad CPC464/CPC664/CPC6128 Emulator written in C
- xmms-uade - Unix Amiga Delitracker Emulator XMMS plugin
- xmms2-nonfree - Nonfree plugins for XMMS2
- xorg-x11-drv-fglrx - AMD's proprietary driver for ATI graphic cards
- xorg-x11-drv-fglrx-devel - Development files for xorg-x11-drv-fglrx
- xorg-x11-drv-fglrx-libs - Libraries for xorg-x11-drv-fglrx
- xorg-x11-drv-nvidia - NVIDIA's proprietary display driver for NVIDIA graphic cards
- xorg-x11-drv-nvidia-96xx - NVIDIA's 96xx series proprietary display driver for NVIDIA graphic cards
- xorg-x11-drv-nvidia-96xx-devel - Development files for xorg-x11-drv-nvidia-96xx
- xorg-x11-drv-nvidia-96xx-libs - Libraries for xorg-x11-drv-nvidia-96xx
- xorg-x11-drv-nvidia-beta - NVIDIA's proprietary display driver for NVIDIA graphic cards
- xorg-x11-drv-nvidia-beta-devel - Development files for xorg-x11-drv-nvidia-beta
- xorg-x11-drv-nvidia-beta-libs - Libraries for xorg-x11-drv-nvidia-beta
- xorg-x11-drv-nvidia-devel - Development files for xorg-x11-drv-nvidia
- xorg-x11-drv-nvidia-libs - Libraries for xorg-x11-drv-nvidia
- xorg-x11-drv-nvidia-newest - NVIDIA's proprietary display driver for NVIDIA graphic cards
- xorg-x11-drv-nvidia-newest-devel - Development files for xorg-x11-drv-nvidia-newest
- xorg-x11-drv-nvidia-newest-libs - Libraries for xorg-x11-drv-nvidia-newest
- xrick - A clone of the game Rick Dangerous
- xv - Interactive image display program for X
- xv-doc - Documentation files for xv image viewer