A. N. Other is used as a placeholder name or, less commonly, a pseudonym used by a person wishing to remain anonymous.
Occasionally it may be abbreviated to ANO, or—in cases where a female name is expected—rendered as Ann(e) 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).