Surdophobia, (also known as or anti-deaf sentiment), is the hostility, intolerance or fear against Deaf people, deaf culture and the Deaf Community. That includes resistance towards the sign languages used. It can consist of a range of negative attitudes towards Deafhood, the idea of deafpositive and deaf rights. Definitions refer variably to antipathy, contempt, prejudice, aversion, and irrational fear. Surdophobia is observable in critical and hostile behaviour such as discrimination and violence on the basis of a perceived non-deaf behaviours.

Surdophobia as a term was coined by Gardy van Gils, a social worker based in the Netherlands (she works now in Hogeschool Utrecht as a Deaf Studies lecturer). While audism is more a specific condition with complicated definitions, Surdophobia is a condition that will trigger a state of fear, known or unknown, in the person. It is also used to describe a condition of fear towards deaf people and their culture.