Dashtansar (, also Romanized as Dashtānsar; also known as Dashtūnsar) is a village in Yeylaqi-ye Ardeh Rural District, Pareh Sar District, Rezvanshahr County, Gilan Province, Iran.

At the time of the 2006 National Census, the village's population was 14 in 4 households. The following census in 2011 designated the village as a seasonal settlement with no permanent population, inhabited from April to October. The 2016 census measured the population of the village as 15 people in 6 households.

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