Jonathan Rashleigh may refer to:

• Jonathan Rashleigh (1591–1675), English politician, for Fowey in 1614, 1621, 1625, April 1640 and November 1640, and 1661
• Jonathan Rashleigh (1642–1702), English politician, MP for Fowey 1675-81 and 1689-95
• Jonathan Rashleigh (1693–1764), English politician, MP for Fowey 1727–64
• Jonathan Rashleigh (cricketer) (1820–1905), English cricketer

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• Ossification of sphenoid bone
• Ossification of the mandible
• Ossification of the sphenoid
• Ossifying fibromyxoid tumour
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