Sibthorp or Sibthorpe is a surname.

People with the surname include:

Family tree

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Sibthorp family tree
John Sibthorpe
(1669–1718)
Coningsby Sibthorp
(1706–1779)
Humphry Sibthorp
(1713–1797)
Humphrey Sibthorp
(1744–1815)
John Sibthorp
(1758–1796)
Charles Sibthorp
(1783–1855)
Gervaise Waldo-Sibthorp
(1815–1861)