var contacts = new Backbone.Collection([ {firstName: 'Luke'},{firstName: 'John'}, {firstName: 'Bill'},{firstName: 'Jill'} ],{model:Backbone.Model}); //remove the Luke model from the collection contacts.remove(contacts.findWhere({firstName:'Luke'})); //remove array of model instances contacts.remove([ contacts.findWhere({firstName:'John'}), contacts.findWhere({firstName:'Bill'}) ]); //Verify the that the model's were removed console.log(contacts.pluck('firstName')); //logs ["Jill"], Luke, John, Bill were removed