William II (German: Wilhelm Karl Paul Heinrich Friedrich; 25 February 1848 – 2 October 1921) was the last King of Württemberg.

William's growing years coincided with a progressive diminution of Württemberg's sovereignty and international presence, concomitant with the process of German unification.

This was not, as it may seem, a departure from the Salic law which governed succession in the German states; his claim to the throne came because he was the nearest agnatic heir of his uncle, as the senior male-line descendant of Frederick I of Württemberg through his younger son Prince Paul.

King William finally abdicated on 30 November 1918,[1] ending over 800 years of the House of Württemberg rule.

Considered to be a popular monarch, William had the habit of walking his two dogs in public parks in Stuttgart without being attended by bodyguards or the like.