Arianna Rosario Valentín (b. 2002) is a visual artist based in San Juan, Puerto Rico. Their work explores the position of the feminized body under imperialist power structures from an intimate and often self-representational perspective. Mutilation and body horror are common themes in their work, serving as physical manifestations of sexual trauma on the body.

Their work has been exhibited in el Museo de San Juan (2025), El Schomburg (Chicago, IL, 2025), the New York Academy of Art (2025), among others. Rosario is also an art historian, educator, and writer, having presented their work at numerous institutions, including Duke University (2023), SUNY New Paltz (2025, remote), and various times at the University of Puerto Rico’s Río Piedras campus.