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

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

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