James Raleigh "Biz" Mackey (July 27, 1897 – September 22, 1965) was an American catcher and manager in Negro league baseball.

In 1924, he finished third in the batting race as Hilldale repeated as champions, but lost to the Kansas City Monarchs 5 games to 4 in the first Negro League World Series with Mackey playing third base.

At first platooning behind the plate with the aging Louis Santop, while also sharing time at shortstop with Pop Lloyd and Jake Stephens, he took over the full-time catching job in 1925.

Mackey's barnstorming tours included a highly successful trip to Japan in 1927, during which he became the first player to hit a home run out of Meiji Shrine Stadium, doing so in three straight games.

Campanella later recalled: Mackey joined the Newark Eagles in 1939, replaced Dick Lundy as manager a year later, and continued his work with young players such as Monte Irvin, Larry Doby, and Don Newcombe.

When Doby joined the Cleveland Indians of the American League in 1947, it was Mackey who recommended moving him from second base to center field.

Personality conflicts with Newark owner Effa Manley led to Mackey's departure from play after the 1941 season, moving to Los Angeles.

[4] Mackey managed the team in 1946 as the Eagles won the Negro League World Series four games to three, again over the Monarchs, who featured pitcher Satchel Paige.