Western Bicutan is one of the 38 barangays of Taguig, Philippines.

It is the city's most populated barangay and the largest in terms of land area.

Arca South, Food Terminal Inc., Technological University of the Philippines – Taguig, the southern portion of Naval Station Jose Francisco, Philippine Navy Golf Club, AFPOVAI, Libingan ng mga Bayani, Taguig-Pateros District Hospital, Veterans Museum, and TESDA headquarters are located in the barangay.

In 2008, two barangays were created out of Western Bicutan, namely: Fort Bonifacio and Pinagsama.

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