石川图（因果图、鱼骨图）是用图解展示一定事件的各种原因的方法。它常用于产品设计，来显示某个总体效果的可能因子。

在六十年代，现代管理学先驱石川馨在川崎重工船厂创建质量管理过程时发展出石川图，它是质量管理的七种基本工具之一，因其形似鱼骨，又被称为鱼骨图。在生产质量管理中，石川图可以帮助企业逆向剖析各个部门的问题，是一种由结果反推各个因素缺陷的工具。

Ishikawa diagrams (also called fishbone diagrams, herringbone diagrams, cause-and-effect diagrams, or Fishikawa) are causal diagrams created by Kaoru Ishikawa (1968) that show the causes of a specific event. Common uses of the Ishikawa diagram are product design and quality defect prevention to identify potential factors causing an overall effect. Each cause or reason for imperfection is a source of variation. Causes are usually grouped into major categories to identify these sources of variation. The categories typically include