Lets see: Egyptian, Mesoamerican, Greco-Roman, Native American, Indian, Arabian, Chinese and I think Japanese too, as well as numerous others I probably didn't pull off the top of my head.

Lore of the Dog by Patricia Dale-Green and Myths of the Dog-Man by David Gordon-White are exceptionally good sources in this area, as well as a few other titles. I can pull some more for you if you're interested in pursuing the subject further.