Stephen B. Blackwell (born August 5, 1849) was an American politician. He was a state legislator in Mississippi.
He was born in Issaquena County and represented it in the Mississippi House of Representatives from 1882 to 1889. He was a Republican and a Baptist.
After his 1887 re-election he was to be one of ten Republicans in the Mississippi House, five of them "colored".
See also African American officeholders from the end of the Civil War until before 1900
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