HyperNiche is a software for nonparametric regression. The primary purpose is to provide a flexible tool for multiplicative habitat modeling – habitat models where the predictors are combined multiplicatively rather than additively. Nonparametric Multiplicative Regression (NPMR; McCune 2006) effectively represents species responses to multiple habitat factors. Factor interactions are accommodated automatically and the overall form of the response surface need not be specified in advance. With a built-in cross-validation procedure to reduce problems of overfitting, NPMR promises models that fit better and are more parsimonious than traditional methods.