pete from seven stars link is playing with semantics!
Having a "Faith", with a capital letter, if you like, relates to a person who believes in some sort of supreme intelligent force; a force which - in Christian, Islam and Judaism traditions, also has the ability to know the deeds and inner-most thoughts of all humans ( yes, it is crazy, isn't it?).
And, their main reason for believing this is - wait for it - because someone in the past said that this supreme being - or one of his agents - visited them and passed on all the relevent info pertaining to how humans conduct themselves on Earth;
Yes, I know it's crazy, but that's what they believe!
Now, this "faith", that pete says atheists possess, is in fact just common sense based on science and a enquiring mind that can't find the slightest evidence for the existence of the God the various religious groups.
All the real evidence points to religion being created by ignorant, primitive man to explain the world around him; in other words, ancient mumbo-jumbo.