NA-187 Rajanpur-I (این اے-187، راجن پُور-1) is a constituency for the National Assembly of Pakistan. It mainly includes the area of Jampur Tehsil. Before the 2018 delimitations, it also included the town of Fazilpur, but it has since been moved to the new NA-194 (Rajanpur-II).[2]
General elections were held on 11 May 2013. Sardar Muhammad Jaffar Khan Leghari of PML-N won by 101,705 votes and became the member of National Assembly.[5]
A by-election was held on 26 February 2023 due to the death of Jaffar Khan Leghari, the previous MNA from this seat.[8]Mohsin Leghari won this seat by a margin of 35,406 votes.[9]