Prince William (6'3″) and Kate Middleton (5'7″) – 8 inches:
While not the most significant height difference on this list, Kate Middleton stands taller than the average woman at 5 feet 7 inches.
Despite the recent spotlight on Prince Harry and Meghan Markle, it seems that as time passes, Prince William and Kate Middleton will remain at the center of attention as the second in line to the throne.