Hadi Soua'an Al-Somaily (Arabic: هادي صوعان الصميلي, born December 30, 1976, in Ta'if) is a Saudi Arabian athlete.

He won the first Saudi silver medal in the Olympics in the 400 metres hurdles, clocking a personal best time of 47.53 seconds in 2000 in Sydney.

US sprinter Angelo Taylor won the race and the gold medal in 47.50 seconds.

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