The Grand Democratic Alliance or GDA is a political alliance in Pakistan. It was founded on 23 October 2017. It currently has 14 seats in the Sindh Assembly and 3 seats in the National Assembly.

On 23 October 2017, Grand Democratic Alliance was formed in Sindh, Pakistan. On 26 November 2017, the leaders of the GDA participated in GDA’s first official meeting to be held in Sukkur on November 26. The alliance was formed to defeat the Pakistan Peoples Party (PPP) in the Sindh province, which is considered a stronghold of the PPP. The alliance has been seen as a major challenger to the PPP in the 2018 elections.