Mark Jeffery (B. 1973, UK)  is a performance artist and Full Professor at The School of the Art Institute of Chicago (SAIC). A former Goat Island member, he co-founded Anatomical Theatres of Mixed Reality in 2012. He co-directs the Living in the Play Residency at The Poor Farm in Wisconsin. Since 2023, he has also co-led the nido Residency in Italy.