Siavash Shams often referred to as Siavash Sahneh is a Persian singer, songwriter, record producer, and philanthropist who rose to fame with his debut album Hamsayeha. He is best known for his work in the 1980s and 1990s, including hit singles such as Dokhtar Irooni, Sahneh, Yavash Yavash, Beraghs, Dokhtare Choopoon and Boro Dige Dooset Nadaram and albums such as Sahneh, Pedar and Faryad.

Siavash has sold millions of records worldwide, making him one of the best-selling Persian music artists of all time. His debut album Hamsayeha is the best selling Persian album of all time. He ranks among the best-selling Persian acts of all time.