Born in Alexandria in 1972, Toussoun graduated from the Faculty of Specific Education -Art Department- Alexandria University. He then obtained the High Diploma of Sculpture.
From Kafr El-Sheikh Faculty of Specific Education in 1996. He was granted a Scholarship from the Ministry of Culture 1991, 2001 and then again in 2006. Omar participated in many exhibitions. To name a few: the Young Artist of Alexandria in Rome (2002) and in Zurich (2003), the Alexandria International Biennale for Meditarranean Arts, the Egyptian Modern Artists in Beirut (2004), Imagining the Book International Biennale in Alexandria Library (2005) and lately the Aswan International Sculpture Symposium for Stone (2006).
Omar was the recipient of several awards, namely: the 1998 Third Award of Installation in the Salon of Youth - Cairo, First Award in Sculpture in the Youth Salon of Alexandria (2001), the Grand Award for Port Said Biennale (2003) and finally the Installation award for the Salon of Youth of Cairo (2005).
Besides personal collections in Egypt and abroad, Omar's works are acquired by the Museum of Modern Arts - Cairo, The Alexandria Library and the Ministry of Culture - Egypt.