| Gaastmeer | |
| Native Name: | De Gaastmar |
| Settlement Type: | Village |
| Pushpin Map: | Netherlands Friesland#Netherlands |
| Pushpin Label Position: | right |
| Pushpin Mapsize: | 250 |
| Pushpin Map Caption: | Location in the Netherlands |
| Coordinates: | 52.965°N 5.5439°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Netherlands |
| Subdivision Type1: | Province |
| Subdivision Name1: | Friesland |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Súdwest-Fryslân |
| Unit Pref: | Metric |
| Area Total Km2: | 6.69 |
| Elevation Footnotes: | [1] |
| Elevation M: | -0.4 |
| Population As Of: | 2021 |
| Population Footnotes: | [2] |
| Population Total: | 280 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 8611 |
| Area Code Type: | Dialing code |
| Area Code: | 0515 |
Gaastmeer (Western Frisian: De Gaastmar) is a village in Súdwest-Fryslân in the province of Friesland, the Netherlands. It had a population of 295 in January 2017.[3]
The village was first mentioned in 1245 as Gersmere, and used to mean "grassland near water", however erroneously evolved into gaast meaning higher land.[4] Gaastmeer was an isolated village between the and the . It was well connected via water, but had no road connections. It used to be a fishing village, and used to specialise in European eel. During the 18th and 19th century, the fishermen of Gaastmeer and neighbouring Heeg used to have their own wharf in London.[5]
Gaastmeer was home to 95 people in 1840.[6] The Protestant Church dates from the 19th century and was rebuilt in 1953. The wooden tower was constructed in 1940.[6] From 1962 onwards, many recreational homes were built in Gaastmeer.[5]
Before 2011, the village was part of the Wymbritseradiel municipality.[6]