| Type: | commune |
| County: | Vaslui |
| Fălciu | |
| Subdivisions: | Bogdănești, Bozia, Copăceana, Fălciu, Odaia Bogdana, Rânzești |
| Leader Name: | Neculai Moraru |
| Leader Party: | PSD |
| Leader Term: | 2020 - 2024 |
| Coordinates: | 46.2961°N 28.1408°W |
| Area Total: | 148.57 |
| Population Total: | auto |
| Postal Code: | 737245 |
| Area Code: | +40x35 |
Fălciu is a commune in Vaslui County, Western Moldavia, Romania. It is composed of six villages: Bogdănești, Bozia, Copăceana, Fălciu, Odaia Bogdana, and Rânzești.
The commune is a border crossing between Moldova and Romania. The Fălciu Nord train station is the terminus of CFR Rail Line 603, which starts in Bârlad and goes through Murgeni.
At the 2011 census, the commune had 5,103 inhabitants, of which 95.75% were ethnic Romanians.