NA-172 Rahim Yar Khan-IV () is a constituency for the National Assembly of Pakistan. This constituency mainly comprises Rahim Yar Khan City, Kot Samaba, Bindor Qanungo Halqa and some portion of Taranda Sawai Khan.
General elections were held on 10 October 2002. Chaudhry Zafar Iqbal Warraich of PPP won by 48,896 votes.
General elections were held on 18 February 2008. Javed Iqbal Warraich of PPP won by 50,090 votes.
General elections were held on 11 May 2013. According to 2013 delimitations Rahim Yar Khan city was NA-196 (Rahim Yar Khan-V). Mian Imtiaz Ahmed of PML-N won by 106,595 votes and became the member of National Assembly.
According to 2018 delimitations NA-196 was changed to NA-179. General elections were held on 25 July 2018. Javed Iqbal Warraich won the election by 100,877 votes and became the member of 15th National Assembly of Pakistan.
General elections were held on 8 February 2024. Javed Iqbal Warraich won the election with 129,727 votes.