跨文化研究（Cross-cultural studies），有时称为「全文化研究」（Holocultural Studies），是人类学及其姐妹科学(社会学、心理学、经济学、政治学)的一项专门，运用来自许多社会的实地研究数据，查看人类行为的视野，并查看关于人类行为与文化的假设。跨文化研究是第三种跨文化比较研究的型态。第一种是案例比较研究，第二种是针对同一个衍生现象的各种不同变易型态，所做的经过控制的比较。第三种则是在一组案例之中，进行抽样比较。有别于比较研究(comparative studies)查看在某些社会之中的相似特征，跨文化研究运用一组充足的样本，因此可以运用统计分析，针对所欲探讨的问题，分析在几个特质之间究竟是具有关联性或欠缺关联性。这些研究是对于民族志数据的调查。跨文化研究已由许多学科的社会科学家所采用，特别是 文化人类学与心理学。

Cross-cultural studies, sometimes called holocultural studies or comparative studies, is a specialization in anthropology and sister sciences (sociology, psychology, economics, political science) that uses field data from many societies to examine the scope of human behavior and test hypotheses about human behavior and culture. Cross-cultural studies is the third form of cross-cultural comparisons. The first is comparison of case studies, the second is controlled comparison among variants of a common derivation, and the third is comparison within a sample of cases. Unlike comparative studies, which examines similar characteristics of a few societies, cross-cultural studies uses a sufficiently large sample so that statistical analysis can be made to show relationships or lack of relationships between the traits in question. These studies are surveys of ethnographic data.