系谱（希腊语：γενεά，意为“传承”，λόγος，意为“信息”），亦称家史，研究并记录一个家族的成员及其亲属的渊源。系谱学家通过口头调查、历史查证、基因分析以及其他手段获取某一个家族的信息并进而考证其成员的亲属关系和血统传承。其成果通常以图表或叙述文本的形式发表。

对于家族历史和起源的诉求可以归纳为几大动机，包括为一个家族在广大的历史背景中找到他们的所在上、一种为子孙后代保护过往的责任感以及一种在讲故事的时候不捏造事实的自我满足感。

Genealogy (from Greek:γενεά genea, "generation"; and λόγος logos, "knowledge"), also known as family history, is the study of families and the tracing of their lineages and history. Genealogists use oral interviews, historical records, genetic analysis, and other records to obtain information about a family and to demonstrate kinship and pedigrees of its members. The results are often displayed in charts or written as narratives.