Mr Ymenus Van der WERFF Netherlands Joined in 1972, left in 1989
Ms Anna-Maria Van der WERF-TERPSTRA Netherlands Joined in 1977, left in 1987
Ms Majléne WESTERLUND PANKE Sweden Joined in 2003, left in 2007
Lord James WHARTON United Kingdom EC/DA Joined in 2022, left in 2024
Ms Heather WHEELER United Kingdom EC/DA Joined in 2024, left in 2024
Mr Phillip WHITEHEAD United Kingdom Joined in 1975, left in 1980
Mr William WHITELEY United Kingdom Joined in 1949, left in 1950
Mr Martin WHITFIELD United Kingdom SOC Joined in 2017, left in 2020
Mr William WHITLOCK United Kingdom Joined in 1970, left in 1972
Mr Andrzej WIECZORKIEWICZ Poland Joined in 1989, left in 1992
Ms Elly van WIJK Netherlands EPP/CD Joined in 2024, left in 2026
Mr Jeroen van WIJNGAARDEN Netherlands ALDE Joined in 2022, left in 2023
Baroness Deborah WILCOX United Kingdom SOC Joined in 2024, left in 2025
Baroness Judith WILCOX United Kingdom EC Joined in 2013, left in 2015
Mr Geert WILDERS Netherlands ECPA Joined in 2020, left in 2026
Mr William WILKINS United Kingdom Joined in 1957, left in 1959
Mr John WILKINSON United Kingdom Joined in 1979, left in 2005
Mr Frederik WILLEY United Kingdom Joined in 1956, left in 1958
Mr Alan WILLIAMS United Kingdom Joined in 1966, left in 1970
Ms Betty WILLIAMS United Kingdom Joined in 2005, left in 2010
Mr Llywelyn WILLIAMS United Kingdom Joined in 1952, left in 1954
Mr Ronald Watkins WILLIAMS United Kingdom Joined in 1951, left in 1952
Sir Thomas WILLIAMS United Kingdom Joined in 1980, left in 1981
Ms Jenny WILLOTT United Kingdom Joined in 2005, left in 2007
Mr Serge WILMES Luxembourg EPP/CD Joined in 2015, left in 2019
Mr David WILSHIRE United Kingdom EDG Joined in 1997, left in 2010
Lord David WILSON United Kingdom NR Joined in 2017, left in 2017
Mr Phil WILSON United Kingdom SOC Joined in 2015, left in 2020
Lord Ian WINTERBOTTOM United Kingdom Joined in 1965, left in 1966
Dame Rosie WINTERTON United Kingdom SOC Joined in 2017, left in 2017
Ms Angelika WINZIG Austria EPP/CD Joined in 2014, left in 2020
Mr Hans-Jürgen WISCHNEWSKI Germany Joined in 1973, left in 1974
Mr Claude WISELER Luxembourg EPP/CD Joined in 2019, left in 2021
Ms C.W.I. WITTEWAAL - VAN STOETWEGEN Netherlands Joined in 1964, left in 1964
Ms Renate WOHLWEND Liechtenstein EPP/CD Joined in 1994, left in 2013
Mr Michał WOJTCZAK Poland EPP/CD Joined in 1999, left in 2012
Mr Andrzej WOJTYŁA Poland EC/DA Joined in 2016, left in 2020
Ms Karin S. WOLDSETH Norway EDG Joined in 2005, left in 2013
Mr Christopher WOODHOUSE United Kingdom Joined in 1961, left in 1962
Mr Marcus WORSLEY United Kingdom Joined in 1965, left in 1970
Mr Bas van 't WOUT Netherlands ALDE Joined in 2015, left in 2016
Mr Anthony WRIGHT United Kingdom Joined in 1999, left in 2000
Lord Patrick WRIGHT United Kingdom NR Joined in 2016, left in 2017