Short form of names like Rosina or Gesina; also connected to Arabic 'Sinai' or Norse origins.
Sina is a name that belongs to multiple cultural traditions simultaneously, each lending it a different meaning and resonance. In Scandinavian countries it functions as a diminutive suffix-name, a standalone form derived from longer names ending in -sina or -sina — related to the broad Germanic tradition of creating short, musical names from longer classical forms. In Arabic, Sina (سينا) is most famously associated with the great medieval polymath Ibn Sina — known in the West as Avicenna — whose Canon of Medicine shaped both Islamic and European medical practice for five centuries.
The name itself in the Arabic tradition means "China" or refers to the region, though in Persian literary usage it became simply a name of prestige by association with its most brilliant bearer. In Samoa and across Polynesia, Sina is an ancient and beloved name with a wholly different lineage: in Samoan mythology, Sina is a moon goddess associated with beauty and the coconut tree, a figure of luminous femininity whose story appears in multiple island traditions from Samoa to Tonga to Hawaii (where the related form is Hina). This Polynesian Sina has given the name deep roots in Pacific Islander communities across the world.
The name also appears in the Balkans — in Albania, Montenegro, and parts of the former Yugoslavia — as an independent feminine name of Slavic resonance. Across all these traditions, Sina shares a quality of brightness and calm precision: it is a name that travels lightly, adaptable to many cultures without losing its distinctness in any of them.