NA-187 Rajanpur-I (این اے-187، راجن پُور-1) is a constituency for the National Assembly of Pakistan.

Sardar Muhammad Jaffar Khan Leghari of National Alliance won by 59,783 votes.

Sardar Muhammad Jaffar Khan Leghari of PML-Q won by 50,440 votes.

Sardar Muhammad Jaffar Khan Leghari of PML-N won by 101,705 votes and became the member of National Assembly.

A by-election was held on 26 February 2023 due to the death of Jaffar Khan Leghari, the previous MNA from this seat.