|Born:||December 23, 1970|
|Years active:||1989 - present|
|Bra/cup size:||G metric|
|Height:||1.61 m (5 ft 31⁄2 in)|
|Weight:||51 kg (112 lb)|
Natsuko Kayama (加山なつこ - Kayama Natsuko) is a Japanese AV idol. She was born on December 23, 1970 in Yokohama, Japan. Her bust measurement is 98cm and she wears a metric G-75 cup bra. One of the "Big Bust Boom" debuts following the appearance of Kimiko Matsuzaka, Kayama made her AV debut in 1989, with the Crystal Eizou company. Kayama also appeared in one of pink film pioneer Satoru Kobayashi's early entries in the big-bust genre.
- Hardcore Post (熱烈投稿 )
- September 1989 (4p.)
- Natsuko Kayama at Japanese Amazon
- スナック美人ママ 加山なつこの裏メニュー. AV 研究所 (AV Research Laboratory). Retrieved on July 19, 2008.
- Natsuko Kayama at novamilfs
- Natsuko Kayama links at FreeOnes
- Natsuko Kayama at the Internet Movie Database
- 加山なつこ（加山なつ子） natsuko kayama (English). www5b.biglobe.ne.jp. Retrieved on July 19, 2008.
- Natsuko Kayama 加山なつこ. Urabon Navigator. Archived from the original on July 30, 2008. Retrieved on October 7, 2008. (possibly a different actress)
- 加山なつこ (Actress information) (Japanese). www.dmm.co.jp. Retrieved on February 16, 2015. (Google translation)
- 加山なつこ (Actress information) (Japanese). www.arzon.jp. Retrieved on February 16, 2015. (Google translation)
- Infobox data from 加山なつこ（加山なつ子） natsuko kayama (Japanese). www5b.biglobe.ne.jp. Retrieved on July 19, 2008. (Google translation); 加山 なつこ - Kayama Natsuko (Japanese). 'Web I-dic' (Idol Dictionary). Retrieved on July 18, 2008. (Google translation)
- 1989. AV 研究所 (AV Research Laboratory). Retrieved on July 19, 2008.
- 熱烈投稿 1995-06 (Japanese). MagYuma. Retrieved on November 17, 2008. (Google translation)