An Nanba

An Nanba also known as Ann Nanba is a former Japanese adult video (AV) actress who had a long and prolific career in the adult entertainment industry. At the beginning of 2009, the DMM and Amazon sites both listed more than 250 DVDs available under her name. She retired from AV work in 2008.

An Nanba was born in Tokyo on March 7, 1984. She says she was very outgoing as a high-school student and looked much older than her age. She had met scouts from the AV industry often but only decided to begin an AV career after she was robbed and needed the money. She had done some gravure model work for Bejean a few months before and she thought she was again doing photographs for a magazine and was shocked when she realized it was a video shoot. The title of her debut video, Number.1!, released in October 2002 by Moodyz when she was 18, is a play on her name (in Japanese name order, Nanba An sounds close to English "Number One").

Her contract with Moodyz was an exclusive one and she is credited with being a driving force in that studio's success. She continued making movies with Moodyz for the rest of her career at the rate of one or often two videos per month. Although she started in AV work for the money to pay debts, she says she stayed because "I realized that my work turned into something of substance".