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

OpenERP, Miami Open 2019, Qatar Total Open 2023, Atlanta Open 2021, Ladies Open Lausanne 2023, Erste Bank Open 2022, Mùa săn (phim 2006), Generali Open Kitzbühel 2021, St. Petersburg Open 2021, Moselle Open 2022, OpenAI, WTA Poland Open 2021, Swedish Open 2023, Mérida Open 2023, Chile Open 2023, Bad Homburg Open 2023, Phần mềm nguồn mở, Ladies Open Lausanne 2022, Open Graphics Project, Generali Open Kitzbühel 2023, Watcom C/C++, Madrid Masters, Prague Open 2021, WTA Lyon Open 2023, With Arms Wide Open, BMW Open 2019 - Đơn, Open 13 2022, Chile Open 2021, Tel Aviv Open 2022, Generali Open Kitzbühel 2022, Ladies Open Lausanne 2021, Liên minh thiết bị cầm tay mở, Open Agriculture, Stockholm Open 2021, ODF, Truy cập mở, Srpska Open 2023, Transylvania Open 2021, Barcelona Open Banco Sabadell 2011 - Vòng loại đơn, Open Season: Scared Silly, Tenerife Ladies Open 2021, Swedish Open 2022, Hamburg European Open 2023, Toray Pan Pacific Open 2022, Open Sud de France 2022, Estoril Open 2023, Open Sud de France 2022 - Đôi, ATX Open 2023, Winston-Salem Open 2022, Qatar ExxonMobil Open 2020

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