Calling card

Calling card may refer to:

Calling Card, a 1976 album by Irish blues-rock musician Rory Gallagher
Business card, a small card with business information that is given for convenience and as a memory aid
Calling card (crime), a signature token or characteristic of a crime used by a serial criminal
Tart card, an ad stuck to a phone box to advertise the services of a call girl
Telephone card, a small card, usually resembling a credit card, used to pay for telephone services
Visiting card, was used socially to signify a visit made to a house if the occupant were absent; or as an introduction for oneself