Amaya is a Japanese surname, and it's almost unknown for a surname to be used as a given name in Japan. The Japanese Girls' Name dictionary (
http://japanese.about.com/gi/dynamic/offsite.htm?site=http://www.dd.iij4u.or.jp/%7Eume20/f%5Fname/) does include two kanji spellings of
Amaya (one of those is phonetic characters, and the other is "rain" + "night"), but
Amaya is most definitely not a traditional first name in Japan. As it's axiomatic that any Japanese first name that can be written differently, will be written differently, one can conclude from the fact that only two kanji spellings of
Amaya are listed in this huge dictionary that it's exceedingly rare.
BTW, the surname
Amaya is usually "heaven" + "valley."
This message was edited 2/17/2008, 8:33 PM