Catesby may refer to:
Places Catesby, Northamptonshire, England, a civil parish Catesby, Oklahoma, United States, an unincorporated community
People Catesby (surname) Catesby ap Roger Jones (1821–1877), American Civil War naval commander R. Catesby Taliaferro (1907–1989), American mathematician, science historian, classical philologist, philosopher and translator of ancient Greek and Latin works Robert Catesby (1572-1605), English Catholic and leader of the 1605 Gunpowder Plot. William Catesby (1450-1485), principal councillor to Richard III of England Mark Catesby (1683–1749) English naturalist
See also Lower Catesby and Upper Catesby, two hamlets in Catesby, Northamptonshire Catesby Priory, in Lower Catesby, a former priory of Cistercian nuns Catesby Tunnel, a disused railway tunnel in Northamptonshire Catesby's snail-eater, a species of non-venomous snake Sistrurus miliarius, a species of venomous snake also known as Catesby's small snake