逻辑主义是数学哲学中的一门学派，其理论推测数学是逻辑的延伸，甚至认为一切的数学皆可视为逻辑的原型。

创始者为戈特洛布·弗雷格，伯特兰·罗素和阿弗烈·诺夫·怀海德在理论理论提出后拥戴此论。戈特洛布·弗雷格在伯特兰·罗素提出罗素悖论后放弃了产生矛盾的朴素集合论。罗素和怀海德将此有关概念著于Principia Mathematica一书。哥德尔不完全定理有时被声称妨碍了此计划的目的。它亦为二十世纪分析哲学的重要指标。

Logicism is one of the schools of thought in the philosophy of mathematics, putting forth the theory that mathematics is an extension of logic and therefore some or all mathematics is reducible to logic. Bertrand Russell and Alfred North Whitehead championed this theory, created by mathematicians Richard Dedekind and Gottlob Frege.