Householder may refer to: Householder, a person who is the head of a household Householder (Buddhism), a Buddhist term most broadly referring to any layperson Householder (surname), notable people with the surname The Householder, a 1963 Indian English/Hindi language film The Householder (novel), a 1960 novel by Ruth Prawer Jhabvala; basis for the film Householder transformation, an algorithm in numerical linear algebra Grihastha, the second phase of an individual's life in the Hindu ashrama system See also Head of the household (disambiguation)