Navajo suicide is an aggressive act aimed primarily at a spouse or consanguineal relatives. It is, moreover, a positive act in that it has culturally defined results affecting the relatives against whom the aggression has been aimed. The patterns of Navajo suicide by age, sex, method and motive appear congruent with the Navajo social organization, loci of acculturative stress upon that system and upon certain individuals and with what is known of the configuration of the Navajo personality. Footnotes. Tables.