Selina \s(e)-li-na\ as a girl's name is pronounced sa-LEEN-ah. It is of Greek origin, and the meaning of Selina is "the moon". Of uncertain origin. It is first found in the 17th century, and it may be a variant of Selena, or of Celia. The name became popular in Britain in the 1980s. perhaps due to the television personality Selina Scott.
For more information, see also the related name Celine.