Omar Mouallem is a Canadian writer and filmmaker known for his multifaceted contributions to journalism, literature, and documentary filmmaking. His writing spans a range of topics, often focusing on Muslim and Middle Eastern life. He has contributed to notable publications such as Wired, The Guardian, NewYorker.com, and RollingStone.com. Mouallem's essays and features have earned him recognition from the Canadian National Magazine Awards and the Alberta Literary Awards.

He co-authored the national bestseller Inside the Inferno: A Firefighter's Story of the Brotherhood that Saved Fort McMurray, which was published by Simon & Schuster Canada. His travel memoir, Praying to the West: How Muslims Shaped the Americas, was not only named one of the best books of 2021 by The Globe and Mail but also won the Nautilus Book Award for Multicultural & Indigenous stories and was nominated for two Alberta Literary Book Awards in the categories of Memoir and Nonfiction. The book later received the 2022 Wilfred Eggelston Nonfiction Award from the Alberta Literary Awards.

Mouallem's notable journalistic work includes the best profile in 2014 for the Eighteen Bridges story, "The Kingdom of Haymour", which earned him a Canadian National Magazine Award. This story profiled a man who took the Canadian Embassy in Beirut hostage in the 1970s over a British Columbia land dispute and partially inspired the 2020 documentary film Eddy's Kingdom, for which Mouallem was a key interview.

As a filmmaker, Mouallem directed and produced two documentaries. In 2019, he created Digging in the Dirt, a CBC co-production addressing the mental health crisis in the Alberta oil sands workforce. His 2021 film, The Last Baron, is a personal exploration of the connection between Lebanon's civil war and the Canadian fast-food chain Burger Baron. The film, after premiering on CBC Gem, was acclaimed as one of the "best Canadian food documentaries" by enRoute magazine and is set to be expanded into a feature documentary titled The Lebanese Burger Mafia in 2023.

In 2013, Mouallem was recognized with Edmonton's Emerging Artist Award and served as the Edmonton Public Library's writer in residence. He was later honored with an Emerging Artists Award from the Lieutenant Governor of Alberta in 2022.