Girl Names Starting With O
4 US girl names beginning with O, each linking to scored middle, sibling and twin name pairings. Sorted A–Z; switch to popularity below.
- Oakley Nature siblings · twins
- Oaklynn Rising siblings · twins
- Olive Peace siblings · twins
- Olivia Peace siblings · twins
No names match those filters.
Girl Names starting with O
This page lists 4 girl names beginning with the letter O that are in real current use in the United States — including popular picks like Olivia, Oaklynn, Oakley. The count comes from US Social Security Administration public records: every name shown was given to at least a handful of US babies in the latest year, so this is not a list of invented or one-off spellings.
Open any name to see its pairing page — middle names, sibling names and twin names, each scored for how well it fits. Use the sort control above to switch between A–Z and 2025 popularity. To browse a different letter, go back to all girl names.