Ali Hasan Mahboob (born Silas Kirui on 31 December 1981 in Kapsabet) is a Kenyan-born Bahrainilong-distance runner. He became a naturalized citizen of Bahrain (switching from his birth country Kenya) ahead of the 2006 season. His personal best time for the 10,000 metres is 27:22.40 minutes, achieved in May 2012 in Wageningen.
His major outing of 2009 was the Asian Athletics Championships and he set a championship record of 28:23.70 minutes to win the 10,000 m, but was narrowly beaten, preventing him from winning a distance double, by James Kwalia in the 5000 m.[4] He turned to cross country at the 2010 IAAF World Cross Country Championships and managed to finish in sixth place in the highly competitive men's race.[5] He returned to defend his 10,000 m title at the 2010 Asian Games and although he finished third in that event, he won the 5000 m title.[6]