Localism may refer to:
- Fiscal localism, ideology of keeping money in a local economy
- Local purchasing, a movement to buy local products and services
- Conflict in surf culture, between local residents and visitors for access to beaches with large waves
- The linguistic theory that all grammatical cases, including syntactic cases, are based on a local meaning
- Localism (politics)
- Localism in Hong Kong, a newly emerging political movement in Hong Kong, which strives for the autonomy of Hong Kong
- Localist camp, related political camp
- Taiwanization, Localism in Taiwan, Taiwanese localization movement
- Pan-Green Coalition, related political groups
- New localism, a concept associated with Tony Blair's Labour government in the United Kingdom
- Localism in Hong Kong, a newly emerging political movement in Hong Kong, which strives for the autonomy of Hong Kong
