Letter: O
- OpenEXR-1.2.2-5.2: A high dynamic-range (HDR) image file format
- OpenEXR-1.4.0a-0.4: A high dynamic-range (HDR) image file format
- ocaml-3.07-0.fdr.5: The Objective Caml compiler and programming environment
- openal-0.0.8-1: Open Audio Library
- openal-0.0.9-0.7.20060204cvs: Open Audio Library
- openobex-1.0.1-0.2: An implementation of the Object Exchange (OBEX) protocol
- openobex1-1.1-1: An implementation of the Object Exchange (OBEX) protocol
- openoffice.org-1.1.5-0.1.kde: OpenOffice.org comprehensive office suite.
- openoffice.org-1.1.5-0.2: OpenOffice.org comprehensive office suite.
- openslp-1.2.1-4: Open implementation of Service Location Protocol V2