|William Pitt, the Younger|
|First appearance||"Dish and Dishonesty"|
|Last appearance||"Dish and Dishonesty"|
|Episode count||1 Episode|
|Played by||Simon Osborne|
William Pitt, the Younger is the Prime Minister of Britain in Blackadder the Third.
Pitt is caricatured as a boy Prime Minister (portrayed by Simon Osborne). Pitt is shown as fictionalised petulant teenager who has just come to power "rather unfortunately right in the middle of (his) exams". In "Dish and Dishonesty" he attempts to have the prince removed from his seat of power by gaining the last seat in Parliament for his (even) younger brother to sway Parliament in his favour. When this fails, he tricks Baldrick into voting in his favour. He is mentioned in later episodes, but not seen. In one episode it is heard his mother is looking for a babysitter to take him to Parliament.
- In the series he is described as a Whig; however, his real life counterpart was Tory.