Letter: O
- ogmrip - DVD ripping and encoding graphical user interface
- ogmrip-devel - Development files for ogmrip
- omnibook - Common files for omnibook-kmod
- openafs - Enterprise Network File System
- openafs-client - OpenAFS Filesystem client
- openafs-devel - OpenAFS development header files and static libraries
- openafs-server - OpenAFS Filesystem Server
- opencore-amr - OpenCORE Adaptive Multi Rate Narrowband and Wideband speech lib
- opencore-amr-devel - Development files for opencore-amr
- openshot - A GTK based non-linear video editor
- osmose - A Sega Master System / Game Gear emulator