Samira Makhmalbaf's Two-Legged Horse will participate in the event's Human Rights in Cinema section and Abbas Kiarostami's Shirin will be screened in the festival's Mined Zone section.
Set in Afghanistan, Makhmalbaf's 101-minute production recounts the story of an Afghan boy who in order to get a job enters a contest in which the objective is to be the fastest to piggyback a crippled boy to school, press tv reported.
One of the youngest Iranian filmmakers, Samira Makhmalbaf has received numerous international awards including the 2000 and 2003 Prix du Jury of the Cannes Film Festival and the 2002 UNESCO Award of Venice Film Festival.
The 28-year-old director was chosen by the Guardian as one of the world's forty top directors. The Apple, The Blackboard and At 5 in the Afternoon are among her better-known films.
Her Two-Legged Horse, which has been screened in numerous international festivals, received the 2008 San Sebastian Special Jury Prize.
Kiarostami's Shirin, first screened at the 65th Venice International Film Festival, depicts the emotional involvement of 112 Iranian actresses and Juliette Binoche, as they watch the 800-year-old Persian love story of Khosrow and Shirin.
Filmmaker, painter, designer and photographer, Abbas Kiarostami has received numerous international awards including the 1997 Cannes Golden Palm award and the 1999 Venice Film Festival's Silver Lion.
The 2009 Istanbul International Film Festival will be held from Feb. 4 to 19.