William IX may refer to:
- William IX of Aquitaine (1071–1126)
- William IX, Count of Poitiers (1153–1156)
- William IX of Montferrat (1494–1518)
- Wilhelm, Duke of Jülich-Cleves-Berg (1516–1592)
- William I, Elector of Hesse (or Hesse-Cassel), also known as William IX, Landgrave of Hesse-Kassel, (1743–1821)
Famous quotes containing the word william:
“Well, I know you haven’t had much experience writing and none at all in pictures. But I’ve heard about you. It all sounded like you’re just the man I wanted for a story about the Navy. I don’t want a story just about ships and planes. I want a story about the officers.... I want this story from a pen dipped in salt water not dry martinis. Do you know what I mean?”
—Frank Fenton, William Wister Haines, co-scenarist, and John Ford. John Dodge (Ward Bond)