Countess Celia von Bismarck-Schönhausen (née Demaurex; 19 October 1971 – 17 December 2010) was a Swiss humanitarian, socialite, magazine editor, and philanthropist.

She worked for the Aga Khan Development Network, the Cinema for Peace Foundation, and served as an Ambassador for the Swiss Red Cross.

From 2003 to 2005, she was employed at the Geneva Centre for Security Policy, taking part in conferences in Kosovo and Serbia.

During her time as a Red Cross ambassador, von Bismarck also worked as a freelance editor at Park Avenue and was employed by the Aga Khan Development Network.

[7] In 1990, while attending the Monaco Grand Prix, she met Count Carl-Eduard von Bismarck-Schönhausen, the son and heir of Ferdinand, Prince of Bismarck.