Provincial elections were held in the Pakistani province of Sindh to elect the members of the 13th Provincial Assembly of Sindh on 25 July 2018, alongside nationwide general elections and three other provincial elections in Khyber Pakhtunkhwa, Balochistan and Punjab. The remaining two territories of Pakistan, AJK and Gilgit-Baltistan, were ineligible to vote due to their disputed status.

General elections were held in Pakistan on 25 July 2018 to elect the members of the 15th National Assembly and the four Provincial Assemblies. The three major parties were Pakistan Tehreek-e-Insaf (PTI), led by Imran Khan, the Pakistan Muslim League, led by Shehbaz Sharif, and the Pakistan People's Party, led by Bilawal Bhutto. The PTI won the most seats in the National Assembly but fell short of a majority; the party subsequently formed a coalition government with several smaller parties. At the provincial level, the PTI remained the largest party in Khyber Pakhtunkhwa (KP); the Pakistan Peoples Party (PPP) retained its dominance in Sindh; and the newly formed Balochistan Awami Party (BAP) emerged as the largest party in Balochistan. In Punjab, the result was a hung parliament, with the Pakistan Muslim League (N) winning the most seats. However, after several independent MPAs joined the PTI, the latter became the largest party and was able to form a government.