Agripina Casimira de los Dolores Samper Agudelo[1] (4 March 1833 — 22 April 1892)[2] was a Colombian poet.

Having a literary family, she received an education not easily accessible to women of her time and country.

She wrote prose and poetry under the pseudonym "Pía-Rigán", an anagram of her given name.

Her work remained unpublished during her lifetime and was only anthologized and published posthumously.

[3] When she widowed in 1882, she moved with her children to Paris, where she died on 22 April 1892.