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

Generali Open Kitzbühel 2021, WTA Poland Open 2021, St. Petersburg Open 2021, OpenAI, Qatar Total Open 2023, OpenType, Madrid Masters, Generali Open Kitzbühel 2023, Mùa săn (phim 2006), Erste Bank Open 2022, Ladies Open Lausanne 2023, OpenERP, Moselle Open 2022, Open Graphics Project, Miami Open 2019, Bad Homburg Open 2023, Swedish Open 2023, Watcom C/C++, Mérida Open 2023, With Arms Wide Open, Phần mềm nguồn mở, Ladies Open Lausanne 2022, Chile Open 2023, Transylvania Open 2021, WTA Lyon Open 2023, Chile Open 2021, Prague Open 2021, Tel Aviv Open 2022, Open 13 2022, Generali Open Kitzbühel 2022, Hamburg European Open 2023, BMW Open 2019 - Đơn, ODF, Liên minh thiết bị cầm tay mở, Open Season: Scared Silly, Toray Pan Pacific Open 2022, Qatar ExxonMobil Open 2022, Stockholm Open 2021, Ladies Open Lausanne 2021, Sofia Open 2021, Open Agriculture, BMW Open 2023, ABN AMRO Open 2023, Srpska Open 2023, OpenStack, Truy cập mở, Giải quần vợt Mỹ Mở rộng, Open Sud de France 2022, Barcelona Open Banco Sabadell 2011 - Vòng loại đơn, Tenerife Ladies Open 2021

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