Sue M. Wilson Brown (September 8, 1877 – January 1, 1941) was an African-American activist for women's suffrage.

[3] As a child her family moved to Iowa, living near Buxton and mining coal.

[4] Brown established the Des Moines League of Colored Women Voters in August 1919, becoming its first president.

[4] She was also involved in the NAACP in Des Moines, forming a "junior chapter" in 1922 and holding the role of president of the local branch from 1925 to 1930.

Brown served on or led several commissions aimed at improving race relations in Iowa as well as being a prominent member of the Prince Hall Order of the Eastern Star.