Sladen
- Anna Kraus (opera)
- Art Sladen
- Arthur Sladen
- Charles Sladen
- Constance Sladen
- Douglas Sladen
- Edward Bosc Sladen
- Elisabeth Sladen
- Fred Winchester Sladen
- Frederick Sladen
- Joseph A. Sladen
- Mount Sladen
- Percy Sladen
- Percy Sladen Memorial Trust
- Sidney Sladen
- Sladen Peltier
- Sladen Summit
- Sladen suit
- Sladen's barbet
- Sladenia (disambiguation)
- Sladeniae
- William J. L. Sladen