Charles Atherton may refer to:

• Charles G. Atherton (1804–1853), Democratic Representative and Senator from New Hampshire
• Charles Humphrey Atherton (1773–1853), American lawyer, banker and politician from New Hampshire

• Secondary alcohols
• Secondary banking crisis of 1973-74
• Secondary banking crisis of 1973–1975
• Secondary beta
• Secondary Board High School
• Secondary Boarding School
• Secondary boarding school
• Secondary body
• Secondary boot loader
• Secondary burial
• Secondary butchering
• Secondary butchery
• Secondary carnivore
• Secondary Catholic Sports Association (SCSA)
• Secondary Causation
• Secondary causation
• Secondary cell walls
• Secondary (chemistry)
• Secondary circuit
• Secondary City
• Secondary city
• Secondary coach
• Secondary cohomology operation
• Secondary constraints
• Secondary diminished seventh chord