Essex County Cricket Club is one of eighteen first-class county clubs within the domestic cricket structure of England and Wales. It represents the historic county of Essex.

Inter-county cricket matches have been played since the early 18th century, involving teams that are representative of the historic counties of England and Wales. Since the late 19th century, there have been two county championship competitions played at different levels: the County Championship, a first-class competition which involves eighteen first-class county clubs among which seventeen are English and one is from Wales; and the National Counties Championship, which involves nineteen English county clubs and one club that represents several Welsh counties.