Syed Sharifuddin Pirzada, a well-known Pakistani lawyer, diplomat, and constitutional expert, served as Secretary General of the Organization of Islamic Cooperation (OIC) from 1985 to 1988, as confirmed by the OIC’s official website.

Although some secondary sources date his tenure to 1984–1988, the OIC’s own records—considered the most reliable source—place 1985 as the year of his official start.

During this time, Pirzada extensively promoted many important issues of the Muslim world such as the Palestine issue, the Kashmir dispute, and unity among OIC member states. Through his skilled diplomacy, he strengthened the legal framework of the organisation and also made its international voice powerful.