A cricket field consists of a large circular or oval-shaped grassy ground on which the game of cricket is played. There are no fixed dimensions for the field but its diameter usually varies between 450 feet (137 m) to 500 feet (150 m). Cricket is therefore one of only two major sports (with baseball) that does not define a fixed-shape ground for professional games. The cricket ground can vary from being almost a perfect circle, to being an extremely elongated oval. On most grounds, a rope demarcates the perimeter of the field and is known as the boundary.

The ICC Standard Playing Conditions define the minimum and maximum size of the playing surface. Law 19.1 of ICC Test Match Playing Conditions states:

"The playing area shall be a minimum of 150 yards (137.16 metres) from boundary to boundary square of the pitch, with the shorter of the two square boundaries being a minimum 65 yards (59.43 metres). The straight boundary at both ends of the pitch shall be a minimum of 70 yards (64.00 metres). Distances shall be measured from the centre of the pitch to be used. In all cases the aim shall be to provide the largest playing area, subject to no boundary exceeding 90 yards (82.29 meters) from the centre of the pitch to be used. "