Hessian may also refer to:
- Hessian (soldiers), eighteenth-century German regiments in service with the British Empire
- Hessian (boot), a style of boot
- Hessian (cloth), coarse woven material
- Hessian (web service protocol)
- Hessian dialects, West Central German group of dialects
- Hessian fly or barley midge, a species of fly
- Hessian matrix, in mathematics, is a matrix of second partial derivatives
- Hessian pair or Hessian duad in mathematics
- Hessian line
- Hessian point