All Saints Church is an Anglican church in the hamlet of Highbrook in Mid Sussex, one of seven local government districts in the English county of West Sussex. The tiny settlement, in the parish of West Hoathly, was distant from the parish church in that village; two wealthy sisters accordingly funded the construction of a new church to serve the local population. Richard H. Carpenter and Benjamin Ingelow's stone building, with a prominent spire, opened in 1884 and was allocated its own parish. The "handsome" church, designed in the 14th/15th-century style of the Gothic Revival, has been listed at Grade II by English Heritage for its architectural and historical importance.