Count Christoph Johann Friedrich von Medem (Jeannot Medem; 1763–1838) was a nobleman from Courland and courtier in the courts of Prussian kings Frederick the Great, Frederick William II and Emperor of Russia Paul I.

Christoph Johan von Medem was born in the Mežotne manor, Semigallia on 13 August 1763.

As Captain and Adjutant of the General Nikolay Raevsky Medem acquired on September 6, 1813, during the German Campaign of 1813 the Order Pour le Mérite.

He married Mary Luise, a daughter of Count Peter Ludwig von der Pahlen.

Their residences included lv:Villa Medem in Mitau and the Durbe Manor near Tukums.