What is the difference between.... Hi, I know this is a very dumb question...but here goes.... I was going through a list of department memebers in the department of mathematics from a particular university and in the list...before the members names you'd find Dr. BUT, there are a few amount of members who have Prof. before there names. SO... what is the difference between Dr. and Prof.? I allways thought that it meant you have a ph.d?