Margaret Middleton is an American independent exhibit designer and museum consultant currently based in Belfast, Northern Ireland. With a degree in industrial design from the Rhode Island School of Design and nearly 20 years of experience in the museum field, they work at the intersection of design and social justice. 

Middleton developed the popular Family Inclusive Language Chart and consults with museums on implementing inclusive practice with special focus on children, gender minorities, and queer people. Their writing has been published in books including Feminist Designer, Storytelling in Museums, Welcoming Young Children Into the Museum, and The Inclusive Museum Leader as well as journals including the Journal of Museum Education, Exhibition, Museums & Social Issues, and Dimensions.

Middleton sits on the editorial board of the journal Exhibition and serves as a Northern Ireland regional representative for Museums Association.