Maryam “Umm Juwayriyah” Sullivan is an American poet, novelist, playwright, journalist and performance artist.

Sullivan's novel The Size of a Mustard Seed is the first published Islamic Urban fiction title.

[citation needed] In addition to writing, performing, and teaching, Umm Juwayriyah is editor for the New England Muslim Women's Association and former two-term assistant director of the Islamic Writers Alliance.

[citation needed] Umm Juwayriyah's began publishing her work at fourteen years old as the founder and a contributor to the newsletter and e-zine Adhaanul Mu’minaat.

She has presented workshops at Rochester Institute of Technology, Al Iqra Academy, and at many Islamic Centers in New England.