Nana Smith (born Nana Miyagi (Japanese: 宮城ナナ); 10 April 1971) is an American-born tennis player who played for Japan.

8, Lindsay Davenport, and also scored wins over many top-20 ranked players, including Martina Hingis.

She had a more successful doubles career, reaching a career-high ranking of 12 in 1997, winning 10 WTA titles and an additional 31 ITF Circuit titles.

Also, she reached the semifinals of the 1993 US Open with Yayuk Basuki, and scored a notable win over Serena and Venus Williams at the 1998 Australian Open, with Naoko Kijimuta.

Nana also won two medals at the 1998 Asian Games in Bangkok, gold in mixed-doubles with Satoshi Iwabuchi and bronze in women's doubles with Rika Hiraki.