Nëca Municipality () is a former municipality in Courland, Latvia. The administrative center was the village of Nëca. As of 2020, the municipality's population was 3,100.
The municipality was located in western Latvia, on the coast of the Baltic Sea. The westernmost point in Latvia was located within its territory. The highest elevation point is <bdi>Pà «sÃÂni Hill (</bdi><bdi>) at</bdi> . Parts of the municipality lie below sea level. Its geography is dominated by coastal plains, and its territory is part of the BÃÂrtava Plain () region.
The municipality was formed in 2009 by merging Nëca Parish and Otaà Â÷i Parish, as part of the 2009 administrative reform.
Nëca Municipality ceased to exist on 1 July 2021, when it was merged into the newly formed South Kurzeme Municipality.
The municipality was subdivided into 2 parishes, namely: