分群随机抽样，英文名称cluster sample，是抽样调查中的一种方法。方法是将调查母体区分为若干个群体，然后以单纯随机抽样方法选定若干群体作为调查样本，对群体内各子体进行普遍调查。

英文描述

probability sample in which the sampling units are selected in groups to reduce data collection costs.

A simple random sample of clusters is selected.

All items in the selected clusters can be used ,or items can be chosen from a clusters using another probability sampling technique.