Mokhtar Yahyaoui (Arabic: مختار اليحياوي) was a human rights activist and a Tunisian judge.

He was opposed to the system of former Tunisian President Zine El Abidine Ben Ali.

Then he was appointed in February 2012, Chairman of the National Commission for the Protection of Personal Data.

His nephew is the famous blogger Zouhair Yahyaoui, the founder of a satirical website TUNeZINE, he is the first cyber-dissident who died as a result of torture in 2005.

Yahyaoui died according to a preliminary medical report cardiac arrest on September 22, 2015, in Teskrayah in the village of Ghazaleh from the region of Bizerte.