Sangam Vihar Vidhan Sabha constituency is one of the 70 Vidhan Sabha constituencies of the National Capital Territory in northern India.
Present geographical structure of Sangam Vihar constituency came into existence in 2008 as a part of the implementation of the recommendations of the Delimitation Commission of India constituted in 2002.
Sangam Vihar is part of South Delhi Lok Sabha constituency along with nine other Vidhan Sabha segments, namely, Bijwasan, Ambedkar Nagar, Chhatarpur, Deoli, Kalkaji, Tughlakabad, Palam, Badarpur and Mehrauli. It is the largest unauthorized colony of Asia.