Similar to 世界気候エネルギー首長誓約
ONE Championship
ONE Championship
Open Invention Network
Open Invention Network
Open Source Virtual Reality
Open Source Virtual Reality
OpenAI Five
OpenAI Five
OpenBitTorrent
OpenBitTorrent
OpenCores
OpenCores
OpenDaylight
OpenDaylight Project
OpenEmbedded
OpenEmbedded
OpenMoko
Openmoko
OpenMosix
OpenMosix
OpenRC
OpenRC
OpenRefine
OpenRefine
OpenServer
OpenServer
OpenSUSEプロジェクト
OpenSUSE Project
Optics Express
Optics Express
Optics Letters
Optics Letters
Orca
Orca (assistive technology)
ORCA (量子化学プログラム)
ORCA (quantum chemistry program)
ORCID
ORCID
OSDN
OSDN
Otter (ソフトウェア)

OW2 Consortium
OW2
PAOKテッサロニキ
PAOK FC
PDFtk
PDFtk
PDRM FC
Polis Diraja Malaysia FC
アジアインフラ投資銀行
Asian Infrastructure Investment Bank
アニメツーリズム協会
Anime Tourism Association
アノニマス・フォー・ザ・ボイスレス
Anonymous for the Voiceless