Post Proper Southside, also known as Post Proper South, Barangay 31, or simply Southside, is one of the barangays of Taguig, a city in Metro Manila, Philippines. It is also widely considered as one of the ten Embo barangays. It was established in 1972 as a barangay under Makati, and its de facto territory consists of multiple exclaves mostly within Palar Village of Barangay Pinagsama and settlements along the Consular Road area between McKinley West of the Bonifacio Capital District and Bonifacio Global City (BGC) in Barangay Fort Bonifacio, Taguig.