The Open Championship, Open Championship 2018, Noventi Open 2019, Open Your Heart, Eyes Open (bài hát), Office Open XML, BMW Open 2019, Open 13 2019, Canadian Open, Mutua Madrid Open 2017, Miami Open 2017, Zug Open, Maharashtra Open 2022, 2 on 2 Open Ice Challenge, OpenOffice.org, Open Automotive Alliance, Barcelona Open Banco Sabadell 2011, Chengdu Open, Moselle Open 2021, OpenStreetMap, Mutua Madrid Open 2019, Tata Open Maharashtra 2023, European Open (quần vợt), Eyes Wide Open, Qatar ExxonMobil Open 2019, Rio Open 2022, Open Sud de France 2019, BMW Open 2019 - Đôi, Open Road Films, Libéma Open 2023, Rio Open 2023, European Open 2021, Maharashtra Open 2022 - Đôi, Erste Bank Open 2021, Halle Open 2022, European Open 2022, Miami Masters, Halle Open 2023, Atlanta Open 2021, Halle Open 2021, Mutua Madrid Open 2018

OpenType, Miami Open 2019, Generali Open Kitzbühel 2021, Qatar Total Open 2023, OpenERP, WTA Poland Open 2021, OpenAI, Mùa săn (phim 2006), Ladies Open Lausanne 2023, St. Petersburg Open 2021, Generali Open Kitzbühel 2023, Erste Bank Open 2022, Madrid Masters, Open Graphics Project, Moselle Open 2022, Chile Open 2023, Watcom C/C++, Bad Homburg Open 2023, Swedish Open 2023, Chile Open 2021, Mérida Open 2023, Phần mềm nguồn mở, Ladies Open Lausanne 2022, With Arms Wide Open, Open 13 2022, Transylvania Open 2021, Liên minh thiết bị cầm tay mở, ODF, WTA Lyon Open 2023, Tel Aviv Open 2022, Ladies Open Lausanne 2021, Prague Open 2021, Hamburg European Open 2023, Open Season: Scared Silly, Generali Open Kitzbühel 2022, Stockholm Open 2021, Truy cập mở, Srpska Open 2023, BMW Open 2019 - Đơn, Tenerife Ladies Open 2021, BMW Open 2023, Open Sud de France 2022, Estoril Open 2023, Swedish Open 2022, Open Agriculture, Toray Pan Pacific Open 2022, Sofia Open 2021, Qatar ExxonMobil Open 2022, Open Sud de France 2022 - Đôi, Qatar ExxonMobil Open 2020

The Open Championship, Open Championship 2018, Noventi Open 2019, Open Your Heart, Eyes Open (bài hát), Office Open XML, BMW Open 2019, Open 13 2019, Canadian Open, Mutua Madrid Open 2017, Miami Open 2017, Zug Open, Maharashtra Open 2022, 2 on 2 Open Ice Challenge, OpenOffice.org, Open Automotive Alliance, Barcelona Open Banco Sabadell 2011, Chengdu Open, Moselle Open 2021, OpenStreetMap, Mutua Madrid Open 2019, Tata Open Maharashtra 2023, European Open (quần vợt), Eyes Wide Open, Qatar ExxonMobil Open 2019, Rio Open 2022, Open Sud de France 2019, BMW Open 2019 - Đôi, Open Road Films, Libéma Open 2023, Rio Open 2023, European Open 2021, Maharashtra Open 2022 - Đôi, Erste Bank Open 2021, Halle Open 2022, European Open 2022, Miami Masters, Halle Open 2023, Atlanta Open 2021, Halle Open 2021, Mutua Madrid Open 2018, OpenType, Miami Open 2019, Generali Open Kitzbühel 2021, Qatar Total Open 2023, OpenERP, WTA Poland Open 2021, OpenAI, Mùa săn (phim 2006), Ladies Open Lausanne 2023, St. Petersburg Open 2021, Generali Open Kitzbühel 2023, Erste Bank Open 2022, Madrid Masters, Open Graphics Project, Moselle Open 2022, Chile Open 2023, Watcom C/C++, Bad Homburg Open 2023, Swedish Open 2023, Chile Open 2021, Mérida Open 2023, Phần mềm nguồn mở, Ladies Open Lausanne 2022, With Arms Wide Open, Open 13 2022, Transylvania Open 2021, Liên minh thiết bị cầm tay mở, ODF, WTA Lyon Open 2023, Tel Aviv Open 2022, Ladies Open Lausanne 2021, Prague Open 2021, Hamburg European Open 2023, Open Season: Scared Silly, Generali Open Kitzbühel 2022, Stockholm Open 2021, Truy cập mở, Srpska Open 2023, BMW Open 2019 - Đơn, Tenerife Ladies Open 2021, BMW Open 2023, Open Sud de France 2022, Estoril Open 2023, Swedish Open 2022, Open Agriculture, Toray Pan Pacific Open 2022, Sofia Open 2021, Qatar ExxonMobil Open 2022, Open Sud de France 2022 - Đôi, Qatar ExxonMobil Open 2020, Croatia Open Umag 2021, Prague Open 2022, Chennai Open 2022, Mutua Madrid Open 2019 - Đôi nam, ABN AMRO Open 2023, Barcelona Open Banco Sabadell 2011 - Vòng loại đơn, Argentina Open 2023, Giải quần vợt Mỹ Mở rộng, ATX Open 2023, The Phantom of the Open, Winston-Salem Open 2022, VIA OpenBook, OpenStack, Maharashtra Open 2022 - Đơn, Gerry Weber Open 2018, Open Arms (bài hát của Journey), Winston-Salem Open 2021, Córdoba Open 2023, Qatar Total Open 2021, Bad Homburg Open 2022, Open 13 2021, Andalucía Open 2021, WTA Poland Open 2022, Swiss Open Gstaad 2023, Open 13 Provence 2023, Prague Open 2023, Swedish Open 2021, Croatia Open Umag 2023, Apache OpenOffice, Giải quần vợt Mỹ Mở rộng 2019, Delray Beach Open 2022, Croatia Open Umag 2022, Nottingham Open 2022, Barcelona Open Banco Sabadell 2019, OpenSSL, Libéma Open 2022, Hamburg European Open 2022, Sardegna Open 2021, Western & Southern Open 2021, BNP Paribas Open 2019, WTA Poland Open 2023, Stockholm Open 2022, Abu Dhabi Open 2023, Córdoba Open 2022, Estoril Open 2021, Quỹ Xã hội Mở, WTA German Open 2023, Los Cabos Open 2023, Giải quần vợt Mỹ Mở rộng 2022 - Đơn nam, Swiss Open Gstaad 2022, OpenSocial, ATP Hong Kong Tennis Open 2025, Libéma Open 2022 - Đôi nữ, Bad Homburg Open 2021, Qatar Total Open 2022, Courmayeur Ladies Open 2021, Swiss Open Gstaad 2021, Qatar ExxonMobil Open 2021, BGL Luxembourg Open 2021, Sáng kiến nguồn mở