Riaz will be available for the county’s first 10 matches, starting against Lancashire Lightning on July 6.
Riaz said: “I’m really excited to be joining Derbyshire for the Vitality Blast.
“They had a terrific 2017 campaign and from what I’ve heard they want to progress further this year.
“I hope I can play my part in a successful side and use my experience to help the squad in any way I can.”
BREAKING āļøšµš°#DCCC sign Pakistan fast bowler Wahab Riaz (@WahabViki) for this summer’s @VitalityBlast šš„
ā”ļø https://t.co/I0tOxhppSj#WeAreDerbyshire pic.twitter.com/wQajlTBHGR
ā Derbyshire CCC (@DerbyshireCCC) May 2, 2018
