William Collick (born c. 1951) is a former American football and wrestling coach and college athletics administrator. He served as the head football coach at Delaware State University from 1985 to 1996, compiling a record of 81–48. Collick was also the athletic director at Delaware State from 1996 to 2000. After leaving Delaware State, Collick coached high school football, as head football coach at Sussex Technical High School in Georgetown, Delaware from 2000 to 2009 and Cape Henlopen High School in Lewes, Delaware from 2010 until his retirement following the 2017 season.