Humongous is a 1982 Canadian slasher film directed by Paul Lynch, and starring Janet Julian, John Wildman, and David Wallace.

The story centers on a group of young adults who become stranded on a deserted island, where they are stalked and murdered by a monstrous assailant.

In 1982, brothers Eric and Nick borrow their father's yacht to take their girlfriends, Sandy and Donna, and their sister, Carla, on a weekend outing to St. Martin Island.

Recovering from the onset of hypothermia, Bert tells a campfire story about the wild dogs which roam Ida's island, acting as her sentries.

In Ida's boathouse, Sandy and Eric discover Carla hiding under a tarp; she washed up at another point and made it to the compound during the night.

With nothing to do but learn from Ida and explore the wilderness, he became immensely strong, a capable hunter, and is convinced that all outsiders are a threat to him and his mother.

[4] On Sneak Previews, Roger Ebert made Humongous his pick for "Dog of the Week", citing its ponderous pacing and repetitive sequences.

Wilson remarked that the characters Nick and Donna are obnoxious and unlikable, but concluded his assessment, "Atmospheric, brutal, sleazy, suspenseful and tense, a monstrous villain, and an energetic finale, this is an entertaining little slasher flick.

[10] Kurt Dahlke from DVD Talk wrote in his review of the film, "Though derivative of other Slasher Movies, plagued by the annoying improbabilities of all A-to-B horror efforts, filled with bickering dorks, and pretty slow to get started, Humongous eventually gets to a weird, frenetic payoff".

[11] Tom Becker from DVD Verdict commented, "While it might not be the shocker it should be, Humongous is a pretty entertaining bit of horror fluff from the days when people took this stuff seriously".

[12] Jack Sommersby from eFilmCritic.com awarded the film a score of 3 out 4 stating, "It's perfect for audiences looking for an undemanding, scary good time, along with those longing to see the drop-dead gorgeous Janet Julian in a skimpy bikini".