Body dysmorphic disorder by proxy (BDDBP), a preoccupation with a perceived defect in another person's appearance may represent a variant of BDD. However, BDDBP has received little empirical attention. We present here the phenomenology of 11 individuals with self-reported BDDBP. Participants completed an internet-based survey that assessed symptoms, psychosocial impact, and treatment history. Participants (8 females, 3 males) reported preoccupation with a wide array of individuals (e.g., spouse, stranger). Body parts of concern most commonly involved the face and head. Most participants spent several (e.g., 3-8) hours per day preoccupied by perceived defects in the person of concern (POC). All participants engaged in rituals to try to alleviate distress or improve the POC's appearance. Most avoided social/occupational activities, including contact with the POC. The impact of BDDBP was profound, particularly on relationships. Findings may help elucidate diagnostic criteria, course, and treatment.