Abdón Cifuentes Espinoza, GCSG (16 May 1835 – 14 April 1928) was a Chilean politician, lawyer, teacher, and writer.

He was the first political leader in the nation who supported granting the women's right to vote in a speech on August 16, 1865.

In 1871, Abdón Cifuentes was appointed Minister of Public Instruction by President Federico Errázuriz Zañartu, in which role Cifuentes proposed that state schools refrain from holding exams from private schools (mostly Catholic) and that such tests be carried out in the colleges themselves.

His actions in this ordeal were questioned in the congress by Guillermo Antonio Matta, who proposed in 1873 that Cifuentes resign from his post.

In 1919, Cifuentes was awarded the Order of St. Gregory the Great by the Vatican, the highest honor that a layman can attain.