Ala'a Eldin Yousif (born January 3, 1982) is a Sudanese footballer who currently plays for the Sudanese club Al-Merrikh in the Sudanese Premier League.
He is a member of the Sudan National Football Team. He captained the national in the last four final qualifiers of the qualifying of the African zone. He was brought from El-Merreikh in December 2004 to the bitter rivals Al-Hilal. After playing for 7 years with Al-Hilal, he returned to Merreikh in July 2012.