Raymond Johnson "Ray" Chapman (January 15, 1891 – August 17, 1920) was an American baseball player, spending his entire career as a shortstop for the Cleveland Indians.

Chapman was hit in the head by a pitch thrown by Yankees pitcher Carl Mays, and died 12 hours later. He remains the only Major League Baseball player to have died from an injury received during an MLB game. His death led to Major League Baseball establishing a rule requiring umpires to replace the ball whenever it became dirty, and it was partially the reason the spitball was banned after the 1920 season. Chapman's death was also one of the examples used to emphasize the need for wearing batting helmets (although the rule was not adopted until over 30 years later).

Chapman was born in Beaver Dam, Kentucky, and raised in Herrin, Illinois. He broke into the Major Leagues in 1912 with the Cleveland team, then known as the Naps.

Chapman led the American League in runs scored and walks in 1918. A top-notch bunter, Chapman is sixth on the all-time list for sacrifice hits and holds the single season record with 67 in 1917. Only Stuffy McInnis has more career sacrifices as a right-handed batter. Chapman was also an excellent shortstop who led the league in putouts three times and assists once. He batted .300 three times, and led the Indians in stolen bases four times. In 1917, he set a team record of 52 stolen bases, which stood until 1980. He was hitting .303 with 97 runs scored when he died. He was one of the few players whom Ty Cobb considered a friend.

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