NA-40 (Tribal Area-I) () is a constituency for the National Assembly of Pakistan comprising Utman Khel Tehsil, Barang Tehsil, Khar Bajaur Tehsil, Bar Chamarkand Tehsil, Nawagai Tehsil, and Mandal and Shamozai sections of Salarzai Tehsil in Bajaur District.
General elections were held on 10 Oct 2002. Maulvi Muhammad Sadiq an Independent candidate won by 13,097 votes.
The result of general election 2008 in this constituency is given below.
Shaukatullah Khan succeeded in the election 2008 and became the member of National Assembly.
General elections were held on 11 May 2013. Bismillah Khan an Independent candidate won by 13,929 votes and became the member of National Assembly.
General elections were held on 25 July 2018.