Ilchester is a village and civil parish in the county of Somerset, England.
Ilchester may also refer to:
United Kingdom Ilchester (UK Parliament constituency), a former constituency in Somerset Ilchester Cheese Company Earl of Ilchester, a title in the Peerage of Great Britain
United States Ilchester, Maryland, an unincorporated community near Baltimore
See also Ilchester Friary Ilchester Museum Ilchester Nunnery Richard of Ilchester (died 1188), medieval English statesman and prelate