Deema Bayyaa is a Syrian actress from a prominent artistic family, born in Damascus on December 3, 1978. Her mother is the renowned actress Maha Al Masri, her father is the director and cinematographer Hazem Bayyaa, and her aunt is the actress Salma Al Masri. She was raised in the United Arab Emirates until the age of sixteen, after which she returned to Syria and earned a Bachelor's degree in English Literature. Bayyaa's artistic career began in 1998 with the support of her mother. Her debut role was in the television series "Al Kawasir," directed by Najdat Anzoor, which served as her breakthrough in the acting world. Her talent shone brightly through her portrayal of "Susu" in the popular social drama "The Four Seasons" (Al-Fusul Al-Arba'a), a role that endeared her to Arab audiences. She subsequently starred in numerous successful dramas, including "Asrar Al Madina" (City Secrets), "Sabaya," "Ala Hafat Al Hawiya" (On the Edge of the Abyss), and "Law." In addition to acting, Bayyaa has ventured into television presenting, hosting the program "Food, Words, and Wisdom." She also starred in the reality TV show "Madame Deema's Wonderful Journey" alongside her husband, Moroccan businessman Ahmed Alhelo. The show, filmed in Sweden, achieved international recognition. Currently residing in Dubai, Bayyaa was married to actor Taim Hassan in 2002, with whom she has two sons, Ward and Fahd; they divorced in 2012. She married Ahmed Alhelo in 2014.

Deema Bayyaa and her husband, Ahmed Alhelo, won the award for Best Reality TV Program in Sweden for their show "Madame Deema's Wonderful Journey" in 2018. Produced by Sweden's official public broadcaster, this was the first Arab program to win the prestigious Kristallen Award, highlighting the show's success in positively representing Arab culture to an international audience. She gained widespread fame through her iconic roles in Syrian drama, notably as "Hadeel" in the 1998 series "Al Kawasir," which launched her career, and as "Susu" in the highly successful social series "The Four Seasons" (1999 and 2002). She also played the character "Nour" in the popular series "Sabaya" (2009). These diverse roles established her as one of the leading actresses of her generation. Bayyaa has participated in dozens of Syrian and pan-Arab drama series that have left a lasting impact on audiences. Her notable works include "Asrar Al Madina" (2000), "Ghezlan Fi Ghabat Al Zi'ab" (2006), "On the Edge of the Abyss" (2007), "Zaman Al 'Aar" (2009), and the joint Arab series "Law" (2014). This extensive filmography demonstrates her versatility in performing comedic, tragic, and historical roles with high proficiency.

She holds a Bachelor of Arts degree in English Literature from Damascus University.