| Official Name: | Western Bicutan |
| Settlement Type: | Barangay |
| Seal Size: | 100x80px |
| Pushpin Map: | Metro Manila |
| Subdivision Type: | Country |
| Subdivision Name: | Philippines |
| Subdivision Type1: | Region |
| Subdivision Name1: | National Capital Region |
| Subdivision Type2: | City |
| Subdivision Name2: | Taguig |
| Subdivision Type3: | District |
| Subdivision Name3: | 2nd Legislative district of Taguig |
| Government Type: | Sangguniang Barangay |
| Leader Title: | Barangay Captain |
| Leader Name: | Pedrito Bermas |
| Leader Title1: | SK Chairman |
| Leader Name1: | Kim Malubay |
| Established Title: | Created |
| Established Date: | 1964[1] |
| Population As Of: | 2020 |
| Population Total: | 87,508[2] |
| Timezone: | PST |
| Utc Offset: | +8 |
| Coordinates: | 14.5094°N 121.0381°W |
| Postal Code Type: | Postal Code |
| Postal Code: | 1630 |
| Area Code: | 02 |
Western Bicutan is one of the 38 barangays of Taguig, Metro Manila, Philippines. It is the city's most populated barangay and the largest in terms of land area. It is located in the northwestern part of the city. 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.[3]
It was historically part of the original barangay "Bicutan" until there are barangays created out of it. These are Central Bicutan, Lower Bicutan, New Lower Bicutan, Upper Bicutan, and Western Bicutan.
In 2008, two barangays were created out of Western Bicutan, namely: Fort Bonifacio and Pinagsama.[4]