Refer

Refer or referral may refer to:
 * Reference, a relation of designation or linking between objects
 * Word-sense disambiguation, when a single term may refer to multiple meanings
 * Referral marketing, to personally recommend, endorse, and pass a person to a qualified professional or service
 * Referral (medicine), to transfer a patient's care from one clinician to another
 * Commit (motion), a motion in parliamentary procedure
 * Refer (software), the tr-off preprocessor for citations
 * Rede Ferroviária Nacional, the Portuguese rail network manager
 * Referral, a form of instant replay in cricket
 * Criminal referral, a document recommending investigation of crimes to the appropriate authority
 * HTTP referer, the address of the webpage of the resource which links to an internet webpage or resource