St. George Cricket Grounds or "St. George Grounds" is a former baseball ground located on Staten Island, New York, USA. St. George was the home park for the New York Metropolitans of the American Association for the 1886 and 1887 seasons. The grounds were also a part time home to the New York Giants of the National League from April 29 to June 14 in 1889.
The stadium, which was built along the lines of a typical horse race track grandstand, was constructed as part of the development of the then-new community of St. George, Staten Island in 1886, by Erastus Wiman. Although the community and the ferry were very successful, Major League baseball was not. The Giants were a strong team through the latter part of the 1880s, and the "original Mets" folded after the 1887 season. The Giants played some games there in 1889 while awaiting construction of the Polo Grounds; their move to the Polo Grounds ended big league ball in St. George.
The parking lot of the Richmond County Bank Ballpark is thought to be the site of the St. George Grounds.