There are multiple origins and meanings for the name Galina:
1. East Slavic extremely popular name (Russian Галина), derived from ancient Greek (γᾰλάνᾱ) [gălánā] means - "serenity, peacefulness, calm sea, sea smooth, calmness, tranquility, clarity", the female equivalent of the male name Galen
2. Comes from Latin, Spanish and Italian name Gallina meaning - "hen, chicken, fowl"
3. Derived from the Greek name Helen etymology (definition) - "bright; sunny"
4. Old English - "of Gaul".