Defne Ayas (b. 1976) is a curator, educator, and publisher working in the field of visual art. She was the director of the Witte de With Center for Contemporary Art in Rotterdam, where she oversaw an exhibition and publication program devoted to established and emerging artists and writers from across the globe. (2012-2017)
Ayas has worked on a number of biennial projects such as: curator of the Pavilion of Turkey in the 56th International Art Exhibition, Venice Biennale; co-curator the 6th Moscow Biennale; curator of the 11th Baltic Triennale; co-curator of the Istanbul and Bandung city pavilions as part of the 9th Shanghai Biennale.