Maria Esmeralda Arboleda Cadavid (January 7, 1921 – 16 April 1997) was a Colombian politician, suffragist and the first woman elected to the Senate of Colombia, serving from 1958 to 1961. A leader of the women's suffrage movement in Colombia, she and fellow suffragist Josefina Valencia Muñoz, were the first women appointed to a national legislative position in Colombia as part of the National Constituent Assembly in 1954, where they presented what would eventually be the Legislative Act No. 3, which modified Article 171 of the Colombian Constitution of 1886 granting universal suffrage to women. She also served as the 10th Minister of Communications of Colombia, as Ambassador of Colombia to Austria, and as Deputy Permanent Representative of Colombia to the United Nations.