The name Sunniva is a girl's name of Norwegian origin meaning "sun gift". Sunniva and is often added to lists like Unique Baby Girl Names and discussed in our forums with posts like "Quick Question Thread?!".
From the experts:
Sunniva was an Irish-born saint who fled to Norway, where she hid in an island cave with her followers and eventually died. After miracles were reported on the island, the cave was excavated and Sunniva's intact body was found. Sunniva is the patron saint of Western Norway. Her name would make a fascinating and unusual choice for a modern baby girl, and if her story is a bit grim, you can take refuge in the upbeat nickname Sunny or Sunni.