Diandra Paramita Sastrowardoyo (born 16 March 1982), better known by her stage name Dian Sastro or Dian Sastrowardoyo, is an Indonesian model and actress.
At the age of 14, she won the teen beauty pageant Gadis Sampul.
She began her acting career with a leading role in the 2000 film Bintang Jatuh (Fallen Star) directed by Rudi Sujarwo.She achieved wider recognition for her role as Cinta in the 2002 film Ada Apa Dengan Cinta?, for which she won the Citra Award for Best Actress.
She reprised the role in the sequel 14 years later.
She won the Best Actress award in the Deauville Asian Film Festival for her role in Pasir Berbisik in 2002.
Sastrowardoyo is one of the most successful actresses in Indonesia.