Alum Rock

Alum Rock may refer to:

• Alum rock, a specific chemical compound and a class of chemical compounds
• Alum Rock, California, US, formerly a town, now a neighborhood of San Jose, California
• Alum Rock Park, in San Jose, California
• Alum Rock, Pennsylvania
• Alum Rock, Birmingham, an area in the UK, two miles east of Birmingham's city centre
  • Alum Rock (ward)