A. N. Other
A. N. Other is used as a placeholder name or, less commonly, a pseudonym used by a person wishing to remain anonymous. It is most used in the United Kingdom, often written as AN Other. Occasionally it may be abbreviated to ANO, or—in cases where a female name is expected—rendered as Ann(e) Other.
As a placeholder name, A. N. Other is commonly employed in lists of cricket players, where players' names are traditionally listed as initials and surname (e.g., I. T. Botham), for players whose names have not yet been announced, or that are unknown. (e.g., "Additional players: A. W. Smith, J. C. Taylor and A. N. Other.")
The name is also used for demonstration on sample documents and identity cards.
An equivalent term is "NN", for "Nomen nescio". Of equivalent function are TBA, TBC, and TBD (to be announced, confirmed, determined).