Thacher
- Ebby Thacher
- Elizabeth Thacher Kent
- George Thacher
- James Kingsley Thacher
- James Thacher
- Jeff Thacher
- John Boyd Thacher
- John Boyd Thacher II
- Joseph S. B. Thacher
- Nicholas G. Thacher
- Peter Thacher
- Russell Thacher
- Ryan Thacher
- Samuel Cooper Thacher
- Sherman Day Thacher
- Solon O. Thacher
- Thacher Island
- Thacher River
- Thacher, Ohio
- Thachers Hill, New Jersey
- Thacker (disambiguation)
- Thatcher (disambiguation)
- Thatcher, Nebraska
- The Thacher School
- Thomas Anthony Thacher
- Thomas Chandler Thacher
- Thomas D. Thacher
- Thomas Thacher
- Thomas Thacher (minister)
- William Thacher