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

• Local (disambiguation)
• Localization (disambiguation)