Members A-Z since 1949

Mr Cranley ONSLOW United Kingdom Joined in 1977, left in 1981

Ms Leyla ONUR Germany Joined in 2001, left in 2003

Mr Oleksandr ONYSCHENKO Ukraine EC Joined in 2013, left in 2015

Mr D.A. Th. van OOIJEN Netherlands Joined in 1973, left in 1977

Ms Ria OOMEN-RUIJTEN Netherlands EPP/CD Joined in 2015, left in 2023

Mr Sherig-ool OORZHAK Russian Federation* Joined in 1996, left in 2002

Mr Rudolf OPITZ Germany Joined in 1975, left in 1977

Mr Gerrit-Jan OPLAAT Netherlands NR Joined in 2023, left in 2024

Mr Mart OPMANN Estonia Joined in 2003, left in 2005

Mr Mario-Ovidiu OPREA Romania Joined in 2007, left in 2009

Mr Hans OPRECHT Switzerland Joined in 1963, left in 1964

Mr Oguz ORAN Türkiye Joined in 1962, left in 1966

Mr Joseph O'REILLY Ireland EPP/CD Joined in 2008

Mr Patrick O'REILLY Ireland Joined in 1962, left in 1965

Mr Marcelino OREJA Spain Joined in 1983, left in 1984

Mr Luis Alberto ORELLANA Italy SOC Joined in 2013, left in 2018

Mr Michael OREN Israel Joined in 2015, left in 2016

Mr Apostolos ORFANIDIS Greece Joined in 1949, left in 1949

Mr Franco Luigi ORIONE Italy Joined in 1980, left in 1984

Mr Andrea ORLANDO Italy SOC Joined in 2018, left in 2025

Mr Mirosław Adam ORLIŃSKI Poland EPP/CD Joined in 2024

Ms Ann ORMONDE Ireland Joined in 2004, left in 2007

Mr Paul d' ORNANO France Joined in 1992, left in 1993

Ms Lesia OROBETS Ukraine EPP/CD Joined in 2013, left in 2015

Mr Hüseyin ÖRS Türkiye NR Joined in 2020, left in 2023

Mr Bruno ORSINI Italy Joined in 1976, left in 1980

Mr Holger ORTEL Germany SOC Joined in 2010, left in 2012

Ms Eva ORTIZ Spain EPP/CD Joined in 2024

Mr Luis ORTIZ Spain Joined in 1986, left in 1987

Ms Josephine ORTLEB Germany SOC Joined in 2018, left in 2022

Mr Rainer ORTLEB Germany Joined in 1994, left in 1994

Mr Hüsamettin ÖRÜC Türkiye Joined in 1988, left in 1996

Mr Maciej ORZECHOWSKI Poland EPP/CD Joined in 2009, left in 2016

Ms Kate OSAMOR United Kingdom SOC Joined in 2015

Mr John OSBORN United Kingdom Joined in 1973, left in 1987

Ms Kate OSBORNE United Kingdom SOC Joined in 2022

Ms Sandra OSBORNE United Kingdom SOC Joined in 2010, left in 2015

Mr Mikael OSCARSSON Sweden EPP/CD Joined in 2010, left in 2014

Mr Brian O'SHEA Ireland SOC Joined in 2011, left in 2011

Ms Jónína Björk ÓSKARSDÓTTIR Iceland SOC Joined in 2025

Ms Steinunn Valdís ÓSKARSDÓTTIR Iceland Joined in 2009, left in 2010

Ms Vera OSKINA Russian Federation* EDG Joined in 2004, left in 2012

Ms Flordeliz OSLER Canada Joined in 2025, left in 2026

Mr Knud ØSTERGAARD Denmark Joined in 1968, left in 1987

Mr Morten ØSTERGAARD Denmark Joined in 2005, left in 2009

Ms Aleksandra OSTERMAN Slovenia ALDE Joined in 2014, left in 2014

Mr Alexey OSTROVSKY Russian Federation* EDG Joined in 2004, left in 2011

Mr Jacek OSUCH Poland EC/DA Joined in 2016, left in 2024

Ms Maureen O'SULLIVAN Ireland UEL Joined in 2011, left in 2013

Mr Peter OŠVÁTH Slovak Republic Joined in 1999, left in 2003

Mr José Antonio OTERO MADRIGAL Spain Joined in 1978, left in 1979

Ms Daniela OTEŞANU Romania SOC Joined in 2023, left in 2025

Ms Nadia OTTAVIANI San Marino EPP/CD Joined in 2011, left in 2013

Mr Yvan OTTENBOURGH Belgium Joined in 1992, left in 1995

Ms Manuelle OUDAR Canada Joined in 2026

Ms Greetje den OUDEN-DEKKERS Netherlands Joined in 1983, left in 1986

Mr Hassan OUKACHA Morocco Joined in 2011, left in 2015

Mr Hassan OUMRIBTE Morocco Joined in 2022

Mr Miroslav OUZKÝ Czechia Joined in 1998, left in 2004

Ms Yuliia OVCHYNNYKOVA Ukraine ALDE Joined in 2020

Ms Eli Sollied ØVERAAS Norway Joined in 2005, left in 2008

Mr Henk OVERBEEK Netherlands UEL Joined in 2017, left in 2019

Mr Karim Van OVERMEIRE Belgium Joined in 2004, left in 2010

Mr Iñaki OYARZÁBAL Spain EPP/CD Joined in 2016, left in 2019

Mr Altan ÖYEM Türkiye Joined in 1978, left in 1980

Mr İbrahim ÖZAL Türkiye Joined in 2005, left in 2008

Mr Hayrettin OZANSOY Türkiye Joined in 1984, left in 1987

Mr Mesut OZANSÜ Türkiye Joined in 1966, left in 1967

Mr Ismet ÖZARSLAN Türkiye Joined in 1984, left in 1989

Mr Mehmet Zekai ÖZCAN Türkiye Joined in 2005, left in 2008

Mr Nazmi Haluk ÖZDALGA Türkiye EDG Joined in 2011, left in 2014

Mr İsmail ÖZDEMIR Türkiye NR Joined in 2018

Ms Sibel ÖZDEMIR Türkiye SOC Joined in 2018, left in 2023

Mr Yüksel ÖZDEN Türkiye EDG Joined in 2008, left in 2011

Mr Mehmet ÖZGUNES Türkiye Joined in 1980, left in 1981

Mr Selahattin OZGUR Türkiye Joined in 1978, left in 1979

Mr Taha ÖZHAN Türkiye FDG Joined in 2016, left in 2018

Mr Hüsuü ÖZKAN Türkiye Joined in 1966, left in 1966

Mr Fakih ÖZLEN Türkiye Joined in 1973, left in 1977

Mr Mehmet ÖZMEN Türkiye Joined in 1974, left in 1975

Ms Linda OZOLA Latvia EPP/CD Joined in 2019, left in 2020

Mr Halil ÖZŞAVLI Türkiye NR Joined in 2020, left in 2023

Mr Hişyar ÖZSOY Türkiye UEL Joined in 2015, left in 2023

Mr Faik ÖZTRAK Türkiye SOC Joined in 2011

Mr Orhan ÖZTRAK Türkiye Joined in 1970, left in 1971

Mr Dogan ÖZTUNG Türkiye Joined in 1974, left in 1975

Mr Berdan ÖZTÜRK Türkiye UEL Joined in 2023

Mr Ömer ÖZTÜRKMEN Türkiye Joined in 1967, left in 1969

Ms Fethiye ÖZVER Türkiye Joined in 1992, left in 1996

Mr Reino PAASILINNA Finland Joined in 1995, left in 1997

Mr Artis PABRIKS Latvia NR Joined in 2019, left in 2019

Mr Paolo PACE Malta Joined in 1966, left in 1971

Mr Massimo PACETTI Canada Joined in 2009, left in 2012

Mr Arturo PACINI Italy Joined in 1972, left in 1976

Ms Doris PACK Germany Joined in 1981, left in 1989

Mr Tom PACKALÉN Finland EC Joined in 2015, left in 2019

Ms María de los Dolores PADIERNA LUNA Mexico Joined in 2016, left in 2019

Mr Julio PADILLA Spain Joined in 2000, left in 2008

Ms Vaira PAEGLE Latvia Joined in 1999, left in 2003

Mr John PAGE United Kingdom Joined in 1973, left in 1987

Mr John Derek PAGE United Kingdom Joined in 1966, left in 1968

Mr Reginald Thomas PAGET United Kingdom Joined in 1955, left in 1957