Wayland Ogden Dean (June 20, 1902 – April 11, 1930) was a Major League Baseball pitcher.

In his major league career, Dean went 24–36 with a 4.87 ERA, 1 save, and 147 strikeouts in 96 games, and 60 starts.

On June 12, Dean was injured after he was struck in the knee during batting practice before a game against the Pittsburgh Pirates at Forbes Field.

In January 1926, the Giants traded Dean to the Philadelphia Phillies along with Jack Bentley for Jimmy Ring.

[11] That season marked Dean's return to the Class-AA Louisville Colonels, where he was first discovered by the New York Giants.

His season was cut short when he became ill with tuberculosis, and was sent to Tucson, Arizona because doctors concluded that his only chance of survival was to be in the city's climate.

"[12] Dean did, however, recover and played the next season with the Class-B Dayton Aviators of the Central League, this time as an outfielder.