Sullington is a village and former civil parish, now in the parish of Storrington and Sullington, in the Horsham district of West Sussex, England.

[2] St Mary's Parish Church nave dates back to Saxon times: the chancel and tower are from the 13th century and the church was restored in 1873.

The patronage of the parish rested with the lord of the manor of Sullington until 1938, when Evelyn Palmer (Lady Caldecott) passed it to the Diocese of Chichester.

The Victorian rectory (built c1845) was sold off as a private residence and later occupied by the writer A J Cronin and the politician Lady Cynthia Asquith.

The manor was held by the Shelley family from the dissolution of the monasteries (1546) until 1789, when it was sold to George Wyndham, 3rd Earl of Egremont.