Walter "Biff" Schaller (September 23, 1889 – October 9, 1939) was an American baseball outfielder.

[1] He also played two seasons in the American Association for the Kansas City Blues (1911-1912) and seven seasons in the Pacific Coast League for the San Francisco Seals (1913–17, 1919), Seattle Rainiers (1919), and Portland Beavers (1919-1920).

[2] During this period, he set a Coast League record by appearing in 642 consecutive games.

He once blamed a batting slump by noting that "the high multitude of Salt Lake City bothers me.

In October 1939, Schaller died of a heart attack after eating dinner at his home in Emeryville.