比较无知学（英语：agnotology，曾做agnatology）是研究文化中刻意引导的无知或怀疑，尤其是出版错误或误导人的科学数据的现象。这个新词是由罗伯特·普罗克特（Robert N. Proctor）所创造，他是史丹佛大学专长于科学与科技史的教授。这个字的来源是由古希腊语的字汇ἄγνωσις（agnōsis，不知道的，来自雅典希腊语 ἄγνωτος 未知）以及-λογία（-logia，学门）组合而成。更广泛而论，这个词描述常见的某个主体知识比过往越来越不模糊的常见现象。

Agnotology (formerly agnatology) is the study of culturally induced ignorance or doubt, particularly the publication of inaccurate or misleading scientific data. The neologism was coined by Robert N. Proctor, a Stanford University professor specializing in the history of science and technology. Its name derives from the Neoclassical Greek word ἄγνωσις, agnōsis, "not knowing" (confer Attic Greek ἄγνωτος "unknown"), and -λογία, -logia. More generally, the term also highlights the increasingly common condition where more knowledge of a subject leaves one more uncertain than before.