A group of goblins is commonly called an Ambush.
A collective noun for goblins can refer to a group of these mischievous and mythical creatures inhabiting various worlds of folklore and mythology. To describe such a gathering, one could use the term "a mob of goblins." This embraces the chaotic and unpredictable nature of goblins, capturing their propensity for mischief and unruly behavior. With a mob of goblins, one can envision a turbulent scene, full of commotion as these tricksters engage in their capricious activities. Whether lurking in dark shadows, causing havoc in a village, or devising cunning plans, a mob of goblins evokes a sense of mayhem and wild energy that aptly characterizes these mythical beings.
Known collective nouns for Goblins include: