William Mount may refer to:

• William Sidney Mount (1807–1868), U.S. painter
• William Mount (Isle of Wight MP) (1787–1869), Member of Parliament for Yarmouth and Newport, Isle of Wight
• William George Mount (1824–1906), MP for Newbury
• Sir William Mount, 1st Baronet (1866–1930), MP for Newbury
• Sir William Mount, 2nd Baronet (1904–1993), British Army officer
• Ferdinand Mount (William Robert Ferdinand Mount, born 1939), British writer, novelist and columnist
• Willie Mount (born 1949), Louisiana politician

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