| Official Name: | Bleiswijk |
| Settlement Type: | Village |
| Pushpin Map: | Netherlands |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location within the Netherlands |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | South Holland |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Lansingerland |
| Area Total Km2: | 21.96 |
| Area Land Km2: | 21.13 |
| Area Water Km2: | 0.84 |
| Population As Of: | January 2020 |
| Population Total: | 10895 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 2665 |
| Area Code: | 010 |
| Blank Name Sec1: | Transport |
| Blank1 Name Sec1: | Major roads |
| Blank1 Info Sec1: | N209 |
Bleiswijk (pronounced as /nl/) is a town and former municipality in the western Netherlands, in the province of South Holland.
The municipality had a population of 10,222 in 2006, and covered an area of 21.96km2 of which 0.83km2 is water. On 1 January 2007, the town was merged with neighbouring towns Bergschenhoek and Berkel en Rodenrijs to form the new municipality Lansingerland.
According to the January 2020 census, its population was 10,895.[1]