NA-143 Sahiwal-III () is a constituency for the National Assembly of Pakistan.
General elections were held on 10 October 2002. Farooq Leghari of National Alliance won by 39,312 votes.
General elections were held on 18 February 2008. Nauman Ahmad Langrial of PML-Q won by 39,864 votes.
General elections were held on 11 May 2013. Muhammad Munir Azhar of PML-N won by 89,126 votes and became the member of National Assembly.
General elections were held on 25 July 2018. Rai Muhammad Murtaza Iqbal won the election with 140,338 votes.
General elections were held on 8 February 2024. Rai Hassan Nawaz won the election with 147,887 votes.
A by-election will be held on 16 November 2025 due to the disqualification of Rai Hassan Nawaz, the previous member from this seat.