Popsugar Celebrity The Royals How Tall Is Kate Middleton? If Prince William Is 6'3", Just How Tall Is the Duchess of Cambridge? 21 September 2018 by Lauren Turner View On One Page Photo 1 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Kate stands out on the steps of St. George's Chapel after the wedding of Prince Harry and Meghan Markle. Previous Next Start Slideshow The RoyalsThe British RoyalsKate Middleton