We present the case of a 17-year-old boy who developed a deep space neck infection following cervical trauma. He was initially managed conservatively with broad-spectrum antibiotics, but when he failed to improve clinically, he required surgical drainage. Wound cultures grew Fusobacterium necrophorum, an uncommon pathogen that can cause pediatric deep neck space infections, especially when it is not associated with Lemierre syndrome. The prognosis for this infection is favorable when it is identified early. Treatment with culture-directed antibiotics and surgical drainage as indicated is appropriate. When treating a pediatric deep neck space infection empirically, physicians should avoid treatment with a macrolide antibiotic, since Fusobacterium spp may be involved and they are often resistant to this class of drugs.