Catesby may refer to:
- Placenames
- Catesby, Northamptonshire, England
- which includes Lower Catesby and Upper Catesby
- Catesby, Oklahoma, USA
- People
- Catesby ap Roger Jones, 1821-1877, US Civil War naval commander
- Mark Catesby, 1683-1749, English naturalist in America
- Robert Catesby, 1573-1605, leader of the Gunpowder Plot
- William Catesby, 1450-1485, English politician