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 3 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 The duchess looks noticeably taller than many well wishers in Berlin. Previous Next Start Slideshow The RoyalsThe British RoyalsKate Middleton