Waddah Sadek (Arabic: وضاح صادق; born September 28, 1968, in Lebanon) is a Lebanese politician and political strategist.

Briefly after working with Al Jadeed 2001, he founded Allied Advertising, a communication agency Lebanon, Qatar and KSA.

[4] Sadek began his career in politics in 2001, first as the Head of Communications to the Prime Minister of Lebanon Rafic Hariri.

He founded “Khatt Ahmar”, a progressive political group that emerged at the time, as well as co-leading on the Lebanese Opposition Front.

This led to the withdrawal of Waddah Sadek and another MP from the bloc, Michel Doueihy of Osos Lebanon, citing political tensions.