Hi Bou Saad is an arabic name, not a turkish. Bou (or Abou) means Father and Saad means Happiness. Bou is a shortcut for Abou. Christians in Lebanon are mainly maronites (catholics), Greek orthodox (they follow the greek orthodox church in Russia or Greece) and Greek catholics (who used to be greek orthodox but changed to catholics in 1724 when they decided to obey to the Pope in Vativan instead of the greek church). There are other christian confessions but they are minorities. As for Bou Saad, they surely originate from a small village in mount Lebanon, but there are many. Years ago, there were an Arak brand called Arak Ghantous and Bou Saad. (Arak is the traditional lebanese alchocol that we drink, like the wine in France or the Ouzi in Greece). This Arak used to be made in a village called Zahléh in Lebanon, it is the main village in the Bekaa valley. Many of its inhabitants left it before world war one. You can check there.