Calpundit has pointed out Kenneth Pollack's answer to my earlier question about what to call Iraq's president:

The correct shorthand is "Saddam." It is not "Hussein," which is merely Saddam's father's first name, not Saddam's family name....In Iraqi tribal society, most people do not have family names. Instead they are called by their own first name and their father's first name....Thus Saddam Hussein essentially means "Saddam, son of Hussein"....Saddam's sons' names are Udayy Saddam and Qusayy Saddam -- their own first names followed by their father's first name.

Glad to have that cleared up.