Stanley Roger Spencer (born August 7, 1969) is an American former Major League Baseball pitcher for the San Diego Padres.

Spencer was drafted by the Boston Red Sox in 1987 in the 26th round, 681st overall, and then again by the Montreal Expos with the 35th pick in the first round of the 1990 draft.

He played a total of 3 seasons going 3-9 with an earned run average of 5.54 and 107 strikeouts.

Graduate of Columbia River High School, Vancouver, Washington (1987).

This biographical article relating to an American baseball pitcher born in the 1960s is a stub.