Hallermann–Streiff syndrome (also known as oculomandibulofacial syndrome, François dyscephalic syndrome, Hallermann–Streiff–François syndrome, oculomandibulodyscephaly with hypotrichosis, Aubry syndrome, and Ullrich-Fremery-Dohna syndrome) is a congenital disorder that affects growth, cranial development, hair growth and dental development.
There are fewer than 200 people with the syndrome worldwide. An organization supporting people with the Hallermann–Streiff syndrome is the Germany-based "Schattenkinder e.V."
Patients with this syndrome are shorter than the average person and may not develop hair in many places, including in the facial, leg and pubic areas. Patients also have eye problems including clouded eyes or reduced eye size, bilateral cataracts and glaucoma.