Yousef Ahmed Masrahi (Arabic:يوسف مسرحي) (born 31 December 1987, in Najran)[2] is a Saudi Arabian track and field athlete, who specialises in the 400 metres sprint.

Masrahi represented his country at the 2012 London Olympics and is a three-time participant at the World Championships in Athletics (2009, 2013, 2015).

[3] Masrahi won the national title over 200 m in 2009 and improved his 400 m best to 45.84 seconds in Riyadh, gaining the "B" qualifying standard.

He was the bronze medalist in the distance at the Arab Athletics Championships and also won the relay title with Saudi Arabia.

With the relay team he anchored the men home to a Saudi national record of 3:02.30 minutes, running with Al-Sabiani, Mohammed Al-Salhi and Al-Bishi to win the Asian Games title.