Daniel J. McClellan (July 1, 1878 – March 10, 1962) was an American baseball pitcher and manager who starred for top-tier independent black teams before the Negro National League was founded.

With the Cuban X-Giants in 1903 he pitched the earliest known perfect game in black baseball against a semi-pro team.

McClellan was described as a "smart pitcher ... to offset his lack of a substantial fastball" by blackball historian Jame Riley.

Sportswriters Harry Daniels and Jimmy Smith both named McClellan to their 1909 "All American Team.

"[3] McClellan was named as "Dream Team" coach in the 1952 Pittsburgh Courier poll of outstanding black baseball players.