- Ã pen-Sankore
- Ã pent kildekodesystem
- Åpent kildekodesystem
- Open-Xchange
- OpenACC
- OpenAI
- Openair Frauenfeld
- OpenAL
- OpenAM
- OpenArena
- OpenBabel
- OpenBazaar
- ÅpenBGPD
- Ã penBGPD
- OpenBIOS
- OpenBoard
- Ã pen boks
- Åpen boks
- OpenBSD
- OpenBTS
- OpenBVE
- openCanvas
- OpenCart
- OpenCity
- OpenCL
- OpenClassrooms
- OpenCog
- OpenCola
- OpenCorporates
- OpenCourseWare
- OpenCV
- OpenCVS
- OpenDataFrance
- Opendatasoft
- Opende
- OpenDNS
- OpenDocument
- OpenDyslexic
- OpenEdition
- OpenEdition Books
- OpenEdition Journals
- OpenElec
- OpenEXR
- OpenFeint
- Ã pen slette
- Ã pne ild
- OpenFisca
- OpenFlow
- OpenFOAM
- OpenFog Consortium
- OpenFX
- OpenGEM
- OpenGEU
- OpenGL
- OpenGL Architecture Review Board
- OpenGL ES
- OpenGL utvidelse wrangler bibliotek
- OpenGL Matematikk
- OpenGL skyggespråk
- OpenGL skyggespråk
- OpenGL brukergrensesnittbibliotek
- OpenGL verktøybibliotek
- OpenGL verktøysett
- OpenGL verktøysett
- OpenGoo
- OpenGraphics
- OpenHistoricalMap
- OpenHMPP
- OpenID
- OpenID Connect
- Ã pne Indiana
- Åpne Indiana
- Ã pningskveld
- Openitsa
- Åpne J9
- Ã pne J9
- OpenJDK
- OpenJPEG
- OpenKeychain
- OpenKODE
- OpenLaszlo
- OpenLayers
- OpenLDAP
- OpenLeaks
- OpenLMI
- OpenLook
- Openluchttheater Valkenburg
- OpenLux
- OpenMandriva Lx
- OpenMAX
- OpenMediaVault
- OpenMicroBlogging
- OpenML
- OpenModelica
- OpenMoko
- Openmoko (selskap)
- openMosix
- OpenMP
- OpenMPT
- OpenMusic
- OpenMW
- OpenNap
- OpenNebula
- OpenNet Initiative
- OpenNIC
- OpenNN
- OpenNTPD
- OpenOffice.org
- OpenPegasus
- OpenPGP
- OpenProj
- OpenProject
- OpenQASM
- OpenQM
- OpenRaster
- OpenRefine
- OpenRISC
- OpenROV
- OpenRT
- OpenSCAD
- OpenSceneGraph
- OpenSeaMap
- OpenSearch
- OpenSearchServer
- OpenSER
- OpenShift
- OpenShot Video Editor
- OpenSimulator
- OpenSIPS
- OpenSkies
- OpenSMTPD
- OpenSocial
- OpenSolaris
- OpenSpace3D
- OpenSPARC
- OpenSSH
- OpenSSL
- OpenStack
- OPENSTEP
- OpenStreetMap
- openSUSE
- OpenTable
- OpenText
- Openthalt
- Ã penhet
- Åpenhet
- OpenToonz
- OpenTSDB
- OpenTTD
- OpenTX
- OpenType
- OpenType-SVG
- Ã pne opp
- Åpne opp
- OpenURL
- OpenVAS
- OpenVDB
- OpenVG
- OpenVMS
- OpenVPN
- OpenVSP
- OpenVZ
- Ã penvask
- Åpenvask
- Openwebnet
- OpenWrt
- OpenX
- OpenXR
- OpenZaurus
- OpenZFS
- Ã pen (Steve Hillage album)
- Åpen (turnering)
- Ã pen (turnering)
- Open Access Scholarly Publishers Association
- Open Access Week
- Ã pne Aeroflot
- Åpne Aeroflot
- Frisk luft
- Friluftsfelt
- Friluftsgampel
- Friluftsteater
- Ã pent og gratis teknologifellesskap
- Åpent og gratis teknologifellesskap
- Åpne arkivinformasjonssystem
- Ã pne arkivinformasjonssystem
- Ã pent arkivinitiativ
- Open Archives Initiative Protocol for Metadata Harvesting
- Ã pne armer
- Open Automotive Alliance
- Ã pen bank
- Åpen bank
- Ã pen bar
- Ã pen barunderholdning
- Åpen barunderholdning
- Ã pen biologi
- 2013 Snooker Open Bluebell Wood
- Ã pent styre for aksjemeglere
- British Open
- British Open Ladies
- British Open menn
- Ã pne programvaren for kringkasteren
- Ã pen virksomhet
- Åpen virksomhet
- Ã pne Canada Cup
- Åpne CASCADE Technology
- Ã pne CASCADE Technology
- Ã pen by (avis)
- Åpen by (avis)
- Ã pne utklippsbiblioteket
- Ã pne Compute Project
- Åpent grunnlovsinitiativ
- Ã pent grunnlovsinitiativ
- Ã pne Container Initiative
- Ã pen kjerne
- Åpen kjerne
- Ã pne kriterier
- Africa Open
- South Africa Open (golf)
- German Open (badminton)
- German Golf Open
- German Open Table Tennis
- Andalusia Open
- 2015 Andorran Squash Open
- English Open (badminton)
- 2016 England Open (badminton)
- English Golf Open
- Snooker England Open
- 2016 England Snooker Open
- 2017 England Snooker Open
- Snooker England Open 2018
- England Snooker Open 2019
- England Snooker Open 2020
- English Open Table Tennis
- 2011 Antwerp Snooker Open
- 2012 Antwerp Snooker Open
- 2013 Antwerp Snooker Open
- Argentinsk à pen Bordtennis
- Argentinsk Åpen Bordtennis
- Australian Open
- Australian Open (badminton)
- Australian Open (golf)
- Australian Open 1969
- Australian Open 1970
- 1971 Australian Open
- Australian Open 1972
- Australian Open 1973
- Australian Open 1974
- Australian Open 1975
- Australian Open 1976
- Australian Open 1978
- Australian Open 1979
- Australian Open 1980
- Australian Open 1981
- Australian Open 1982
- Australian Open 1983
- Australian Open 1984
- Australian Open 1985
- Australian Open 1987
- Australian Open 1988
- Australian Open 1989
- Australian Open 1990
- Australian Open 1991
- Australian Open 1992
- Australian Open 1993
- Australian Open 1994
- Australian Open 1995
- Australian Open 1996
- Australian Open 1997
- Australian Open 1998
- Australian Open 1999
- Australian Open 2000
- Australian Open 2001
- Australian Open 2002
- Australian Open 2003
- Australian Open 2004
- Australian Open 2005
- Australian Open 2006
- Australian Open 2007
- Australian Open 2008
- Australian Open 2009
- Australian Open 2010
- Australian Open 2011
- Australian Open 2012
- Australian Open 2013
- Australian Open 2014
- Australian Open 2015
- Australian Open 2016
- Australian Open 2017
- Australian Open 2018
- Australian Open 2019
- Australian Open 2020
- Australian Open 2021
- Australian Open i desember 1977
- Australian Open Snooker
- Australian Open Snooker 2012
- 2013 Australian Snooker Open
- Australian Open Women's Squash 1999
- Australian Open Women's Squash 2010
- Australian Open Women's Squash 2011
- Australian Open Women's Squash 2012
- Australian Open januar 1977
- Australian Open Men's Squash 2010
- Australian Open Men's Squash 2011
- 2012 Australian Open Men's Squash
- Austrian Open (golf)
- Ãsterriksk snooker Ã¥pen
- Ãsterriksk à pen Bordtennis
- Scottish Open (badminton)
- Scottish Open (golf)
- Scottish Open Snooker
- Scottish Open Snooker 2012
- Scottish Open Snooker 2016
- Scottish Open Snooker 2017
- Scottish Open Snooker 2018
- Scottish Open Snooker 2019
- Scottish Open Snooker 2020
- 2014 Edmonton Open Squash
- 2015 Edmonton Open Squash
- 2016 Edmonton Open Squash
- Egypt Open
- Squash Egypt Open 2019
- Egypt Open Table Tennis
- Kvinner Squash Egypt Open 2020
- Squash for menn, Egypt Open 2020
- Spanish Open (golf)
- Spanish Open (taekwondo)
- Spansk à pen Bordtennis
- European Snooker Open
- Indian Open (badminton)
- Snooker India Open
- Indian Snooker Open 2017
- Indian Snooker Open 2019
- India Open Table Tennis
- Indonesian Open (badminton)
- Irish Open (golf)
- Snooker Northern Ireland Open
- 2016 Northern Irish Open Snooker
- 2017 Northern Irish Open Snooker
- 2018 Northern Irish Open Snooker
- 2019 Northern Irish Open Snooker
- 2020 Northern Irish Open Snooker
- Istanbul Open
- Istanbul Open 2011
- Italian Open (golf)
- Italian Snooker Open 2019
- 2020 Italian Snooker Open
- Åpne databasetilkobling
- Ã pne databasetilkobling
- Ã pne databaselisens
- Ã pen dataindeks
- Åpen dataindeks
- Open Data Institute
- Ã pen dataprotokoll
- Open Design Alliance
- United States Open (badminton)
- United States Open Table Tennis
- Flanders Open 2000
- Flanders Open 2001
- Squash Flanders Open
- Cayman Islands Open
- Cayman Islands Open 2009
- Cayman Islands Open 2010
- Cayman Islands Open 2011
- Dutch Open (badminton)
- Dutch Open (golf)
- Dutch Open Squash
- Dutch Open Squash 2009
- 2002 Dutch Women's Squash Open
- 2003 Dutch Women's Squash Open
- Dutch Open Women's Squash 2004
- Dutch Open Women's Squash 2005
- 2007 Dutch Women's Squash Open
- 2008 Dutch Women's Squash Open
- Dutch Open Women's Squash 2010
- 2005 Dutch Open Men's Squash
- 2007 Dutch Open Men's Squash
- 2008 Dutch Open Men's Squash
- 2010 Open Dutch Squash for menn
- 2020 Three Kings Snooker Open
- Åpne vulkaner
- Ã pne vulkaner
- Belgian Open
- Belgian Open (golf)
- Belgian Open Table Tennis
- Hviterussisk Åpen Bordtennis
- Hviterussisk à pen Bordtennis
- Brugge Open Snooker 2010
- Bulgaria Open Snooker 2012
- 2013 Bulgarian Snooker Open
- 2014 Bulgarsk snooker åpen
- Bulgaria Open Snooker 2015
- Bulgarsk Åpen Bordtennis
- Cappelle-la-Grande Open
- Charlottesville Squash Open
- 2014 Charlottesville Squash Open
- 2015 Charlottesville Squash Open
- 2016 Charlottesville Squash Open
- 2017 Charlottesville Squash Open
- 2010 Chennai Women's Squash Open
- 2010 Chennai Open Squash for menn
- Chicago Squash Open 2017
- China Open (badminton)
- China Open (golf)
- China Open (squash)
- China Open 2015 (badminton)
- China Snooker Open
- China Snooker Open 2009
- 2013 China Snooker Open
- 2014 China Snooker Open
- 2017 China Snooker Open
- 2018 China Snooker Open
- China Snooker Open 2019
- 2011 China Squash Open
- China Squash Open 2012
- 2013 China Squash Open
- Kina Open Table Tennis
- 2009 China Open Squash for kvinner
- 2010 Kina Open Squash for kvinner
- 2015 China Open Squash for kvinner
- 2016 China Open Squash for kvinner
- 2017 Open China Squash for kvinner
- 2018 Open China Squash for kvinner
- 2019 Kvinner Kina Open Squash
- 2014 Open China Squash for menn
- 2015 Open China Squash for menn
- 2016 Open China Squash for menn
- 2017 Squash China Open for menn
- 2018 Squash China Open for menn
- 2019 Squash China Open for menn
- Colombia Squash Open
- 2001 Colombia Squash Open
- Colombia Squash Open 2005
- 2006 Colombiansk Squash Open
- Colombia Squash Open 2007
- 2008 Colombiansk Squash Open
- Colombia Squash Open 2009
- Colombia Squash Open 2010
- Colombia Squash Open 2011
- Colombia Squash Open 2012
- 2013 Colombia Squash Open
- Colombia Squash Open 2014
- Colombia Squash Open 2015
- South Korea Open (badminton)
- South Korea Open (taekwondo)
- South Korea Open 2015 (badminton)
- Sørkoreansk åpen bordtennis
- Sørkoreansk åpen bordtennis
- Kroatisk åpent bordtennis
- Kroatisk åpent bordtennis
- Dayton Open
- Dayton Open 2003
- Dayton Open 2004
- Dayton Open 2005
- Dayton Open 2006
- Dayton Open 2007
- Dayton Open 2008
- Dayton Open 2011
- Dayton Open 2012
- 2014 Dongguan Snooker Open
- Dubai bordtennis åpen
- French Open
- French Open (badminton)
- French Open 2014 (badminton)
- French Open 2015 (badminton)
- French Open 2018 (badminton)
- French Open Swimming
- French Open of sport blowpipe
- French Open Table Tennis
- French Open for kvinner
- French Open for kvinner - Nantes 2019
- French Open menn - Nantes 2019
- 2012 Gdynia Snooker Open
- 2014 Gdynia Snooker Open
- 2015 Gdynia Snooker Open
- 2016 Snooker Gdynia Open
- Gibraltar Snooker Open
- Gibraltar Snooker Open 2015
- Gibraltar Snooker Open 2017
- Gibraltar Snooker Open 2018
- Gibraltar Snooker Open 2019
- Gibraltar Snooker Open 2020
- Gibraltar Snooker Open 2021
- British Open Snooker
- Greenwich Open
- Greenwich Open 2001
- Greenwich Open 2003
- Greenwich Open 2005
- Greenwich Open 2006
- Greenwich Open 2007
- Greenwich Open 2008
- Greenwich Open 2009
- Greenwich Open 2010
- Greenwich Open 2011
- Greenwich Open 2012
- Greenwich Open 2013
- Greenwich Open 2014
- Snooker Haining Open
- 2014 Snooker Haining Open
- 2015 Snooker Haining Open
- 2017 Snooker Haining Open