Del squared may refer to:
Laplace operator, a differential operator often denoted by the symbol ∇2 Hessian matrix, sometimes denoted by ∇2 Aitken's delta-squared process, a numerical analysis technique used for accelerating the rate of convergence of a sequence
See also DEL2, the second tier ice hockey league in Germany Del, a vector calculus differential operator Nabla symbol, the symbol used for the Del operator ∂, the partial derivative operator symbol Del (disambiguation)