Niina

Niina is a Finnish feminine given name, the Finnish version of Nina; it is also used in Japanese to transliterate the name Nina.

Niina may refer to the following notable people:
 * Niina Kelo (born 1980), Finnish pentathlete
 * Niina Koskela (born 1971), Finnish chessplayer
 * Niina Ning Zhang, Chinese linguist
 * Niina Mäkinen (born 1992), Finnish ice hockey forward
 * Niina Malm (born 1982), Finnish politician
 * Niina Petrõkina (born 2004), Estonian figure skater
 * Niina Sarias (born 1984), Finnish snowboarder