Olga Zrihen (Arabic: أولجا زريهان; Casablanca, January 10, 1953[1]) is a Moroccan-born Belgian politician and a member of the Parti Socialiste.

Zrihen was born to a Jewish family in Casablanca, Morocco.

[5] She became a member of the European Parliament in April 2001,[6] not reelected in June 2004, this time after having acquired Belgian citizenship.

[7] She is a member of the International Council of Jewish Parliamentarians[8] and in March 2002, she supported an appeal in favour of Israeli membership of the European Union.

[9][10] Elected in 2009 as a member of the Regional Parliament of Wallonia, Zrihen replaced Joëlle Kapompolé as a senator for the Walloon community until 2014.