Varadi Papp is a syndrome of polydactyly of the fingers and toes, cleft lip/palate or lingual nodule, somatic and psychomotor retardation, and occasional internal abnormalities. It is also known as hyperdactyl, which is a congenital physical anomaly consisting of supernumerary fingers or toes.

The most common manifestation of the syndrome is an extra digit on the fingers or toes, which is usually a small piece of tissue and occasionally may contain a bone without joints.