| Portengen | |
| Settlement Type: | Hamlet |
| Native Name Lang: | nl |
| Pushpin Map: | Netherlands Utrecht#Netherlands |
| Pushpin Map Caption: | Location in the Netherlands |
| Subdivision Type: | Country |
| Subdivision Name: | Netherlands |
| Subdivision Type1: | Province |
| Subdivision Name1: | Utrecht |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Stichtse Vecht |
| Elevation Footnotes: | [1] |
| Elevation M: | -0.5 |
| Area Total Km2: | 6.87 |
| Population Footnotes: | [2] |
| Population Total: | 285 |
| Population As Of: | 2021 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 3628 |
| Area Code Type: | Dialing code |
| Area Code: | 0346 |
| Coordinates: | 52.1558°N 4.9633°W |
Portengen is a hamlet in the Dutch province of Utrecht. It is located in the municipality of Stichtse Vecht, 1km (01miles) northeast of Kockengen.
Portengen was a separate municipality from 1818 to 1857, when it was merged with Breukelen-Nijenrode.
The hamlet was first mentioned in 1217 as Britannien, and is a reference to Brittany, France. It started as a peat excavation colony during the 11th and 12th century.[3] The hamlet of Portengensebrug is an enclave within Portengen. In 1840, Portengen was home to 55 people.[4]