William Seymour

• Herefordshire (UK Parliament constituency)
• William Digby Seymour
• William Digby Seymour (1805–1872)
• William H. Seymour
• William Henry Seymour
• William J. Seymour
• William Kean Seymour
• William Seymour (British Army officer)
• William Seymour (Congressman)
• William Seymour (MP for Herefordshire)
• William Seymour Jr.
• William Seymour Tyler
• William Seymour, 2nd Duke of Somerset
• William Seymour, 3rd Duke of Somerset