Malek Jaziri is a professional Tunisian tennis player. He reached the semifinals of Moscow in 2012 and the quarterfinals of Dubai in 2014.
Jaziri reached his highest individual ranking on the ATP Tour of World No. 69 in June 2012. 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 is the first time that Jaziri has played in the main draw of a major. 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.
In 2012, he kicked off his year at the ATP 250 event in Doha and pushed World No. 6 Jo-Wilfried Tsonga to three sets in the first round. He fell in the first round of qualifying at the Australian Open to Tim Smyczek. He then reached three challenger finals in Quimper, Kyoto and Pingguo to break into the top-100 for the first time.
In his clay season, he made the semi-finals in the Barletta Challenger and played his first Roland Garros main draw, winning his first round 6–3, 7–5, 7–6(7) over German Philipp Petzschner before losing a tight second round to Spaniard Marcel Granollers missing 2 match points.
On grass he reached the second round on his Wimbledon debut (lost to Kohlschreiber) and also the second round at the London Olympics (lost to John Isner).
He lost in the US Open first round but later had his best ever result on the ATP World Tour when he reached the semi-finals of the Kremlin Cup in Moscow (lost to eventual champion Andreas Seppi) to become the first Tunisian male to reach the semi-finals of an ATP event.
Jaziri has been a member of the Tunisia Davis Cup team since 2000, posting an 18–12 record in singles and a 7–10 record in doubles in 29 ties.