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Look up rationalism in Wiktionary, the free dictionary.
Rationalism is a philosophical position, theory, or view that reason is the source of knowledge.
Rationalism may also refer to:
- Rationalism (architecture), a term applied to a number of architectural movements
- Rationalism (international relations), a political perspective on the international system
- Rationalism (theology), philosophical Rationalism applied in theology
- Critical rationalism, an epistemological philosophy advanced by Karl Raimund Popper
- Economic rationalism, an Australian term in discussion of microeconomic policy
- Pancritical rationalism, a theory by William Warren Bartley developed from panrationalism and critical rationalism