Mariah Garnett (b. 1980, Portland; lives and works in Los Angeles) received an MFA from California Institute of the Arts (2011) and a BA from Brown University (2003). Garnett is an assistant professor at the University of California, San Diego. Solo exhibitions have been held at Contemporary Arts Museum Houston (2022); Commonwealth and Council, Los Angeles (2021); Los Angeles Municipal Art Gallery (2019); Metropolitan Arts Centre, Belfast (2016); Los Angeles Contemporary Archive (2016); Buenos Tiempos Int., Brussels (2014); 2nd Floor Projects, San Francisco (2013); and Human Resources, Los Angeles (2010). Selected group exhibitions have been held at Los Angeles Municipal Art Gallery (2024); Fierman Gallery, New York (2019); Magic Hour, Joshua Tree (2018); New Museum, New York (2017); Vamiali, Athens (2017); Goldsmiths, London (2017); National Broadcast Ireland (2016); Hammer Museum, Los Angeles (2014); Artspace Aotearoa, Auckland (2014); and Brooklyn Museum, New York (2012). Garnett is a recipient of John Simon Guggenheim Memorial Foundation Fellowship (2019), Macdowell Colony Fellowship (2017), Harpo Emerging Artist Grant (2017), Artadia Los Angeles Award (2016), Rema Hort Mann Emerging Artist Grant (2015), and California Community Foundation Fellowship for Visual Artists (2014).

Garnett's work is in the collection of Hammer Museum, Los Angeles.