XZZX, Mariela Gerónima Domínguez Moreno (b. 1979), is a multidisciplinary artist, curator, and cultural manager of South American origin who has been living in Houston since 2016.

She has developed independent curatorial projects in Buenos Aires, Santiago de Chile, Montevideo, and Houston.

Her interests have been various; among them the development of projects in the field of visual communication, including installation, urban art, popular art, fashion, sculpture, video, jewelry, illustration, and painting. Her projects and work have been exhibited in spaces such as Galería Buenos Aires Sur, Espacio Matta, Houston Center for Contemporary Craft, Institute of Hispanic Culture of Houston, Sawyer Yards, Archway Gallery, The Museum of Fine Arts, Houston, and Craighead Green Gallery.

She graduated in Graphic Communication from the ALPES Professional Institute in Santiago de Chile. She later received a certificate in Strategic Design Management from the Graduate School of the University of Buenos Aires, along with continual studies in art history and criticism.