There are multiple origins and meanings for the name Elina:
1. Ancient Greek name (Ἕλληνα) [Ellina], derived from the Greek word (ελληνικά) [ellinka] "Greek girl", see the name Ellina
2. Scandinavian (Danish, Swedish and Norwegian) form of the Greek given name Elen meaning "sunny"
3. Hebrew given name (אלינה) - "life given by God (El)"
4. Soviet name, etymology - "ELectrification + INdustrialization"