West Grinstead is a village and civil parish in the Horsham District of West Sussex, England. It lies just off the B2135 road four miles northwest from Henfield. It is within the ancient division of the Rape of Bramber
The western River Adur flows through the village.
The parish of West Grinstead covers an area of 2584 hectares and consists of the villages of West Grinstead, Littleworth, Partridge Green and Dial Post. In the 2001 census 2934 people lived in 1099 households, of whom 1547 were economically active. At the 2011 Census the population was 3,054
The village should not be confused with the much larger town of East Grinstead which lies 17.5 miles to the north-east.