| Settlement Type: | Buurtschap |
| Biert | |
| Subdivision Type: | Country |
| Subdivision Name: | Netherlands |
| Subdivision Type1: | Province |
| Subdivision Name1: | South Holland |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Nissewaard |
| Coordinates: | 51.8269°N 4.2711°W |
Biert is a hamlet in the Dutch province of South Holland. It is located in the municipality of Nissewaard, about 3 km west of Spijkenisse.
Biert was a separate municipality between 1817 and 1855, when it became part of Geervliet.[1]