Dudley Ryder

• Dudley Ryder, 1st Earl of Harrowby, British politician
• Dudley Ryder, 2nd Earl of Harrowby, British politician
• Dudley Ryder, 3rd Earl of Harrowby, British peer and politician
• Dudley Ryder, 6th Earl of Harrowby, British peer and Conservative Member of Parliament
• Dudley Ryder, 7th Earl of Harrowby, British banker
• Dudley Ryder, 8th Earl of Harrowby, British peer
• Dudley Ryder , British Lord Chief Justice