Malek Jaziri (Arabic: مالك الجزيري, romanized: Mālik al-Jazīrī; born January 20, 1984) is a professional Tunisian tennis player. He reached the final of Istanbul in 2018, the semifinals of Moscow in 2012, Winston-Salem in 2015, Dubai in 2018 and the quarterfinals of Dubai in 2014.
Jaziri reached his highest individual ranking on the ATP Tour of world no. 42 in January 2019. He appeared in the qualifying draw at the 2010 Australian Open, losing in the first round to Michał Przysiężny of Poland. He primarily plays on the Futures circuit and the Challenger circuit. Jaziri qualified for the 2011 US Open, defeating Brian Dabul, Michael Ryderstedt, and Guillaume Rufin in the qualifying draw. This was the first time Jaziri played in the main draw of a Grand Slam tournament. In the first round, Jaziri defeated world no. 159 Thiemo de Bakker in four sets. Jaziri lost to world no. 8 Mardy Fish in the second round. Jaziri has been coached by Tunisian legend Haythem Abid on and off throughout his career.