Hampden County may refer to:

• County of Hampden, Victoria, Australia
• Hampden County, Massachusetts, United States

• Pontiac, Michigan (Amtrak station)
• Pontiac Regional County Municipality, Quebec
• Pontiac school district
• Pontiac School District 429
• Pontiac's Confederacy
• Pontiac's Rebellion school massacre
• Pontiac State
• Pontiac Stinger
• Pontiac Storage Facility
• Pontiac Straight-6 engine
• Pontiac Streamliner
• Pontiac Super Chief
• Pontiac Torpedo
• Pontiac Township
• Pontiac Township High School District
• Pontiac Transportation Center
• Pontiac Transportation Center (1983)
• Pontiac-Témiscamingue
• Pontiac-Témiscamingue (electoral district)
• Pontiac-Témiscamingue (provincial electoral district)
• Pontiac William Holliday School District
• Pontiac-William Holliday School District
• Pontiac-William Holliday School District 105
• Pontiac William Holliday School District 105
• Pontiac Winner's Circle 200