Mala onda (English: Bad Vibes) is a Chilean Bildungsroman novel and social commentary by Alberto Fuguet.

The protagonist is Matías Vicuña, a maladjusted, upper class, 17-year-old boy who is jaded and frustrated by what he perceives as the folly and blandness of his family and peers.

The novel examines the Chilean emulation of American consumerism and pop culture, in the context of a growing opposition to the dictatorial rule of Augusto Pinochet in Chile.

The novel culminates with Matías attempting to replicate Holden's self-inflicted isolation by fleeing his family, friends, and academics.

Despite familial bouleversements, Matías finds peace and learns to embrace change: symbolizing the trepidation Chile faces as it undergoes a transition of power.