A multicultural option that's equally intriguing but more unusual than Maia. Connected to water and the ocean, it is a Top 100 choice in Spain and Puerto Rico and has been rising up the charts in France and the UK in recent years. Alternative (and equally multicultural) spelling alternative Nya has also proved popular.

The name from which Jordan arose, Yarden has a nice combination of river imagery and a sound connoting a garden. Like Jordan, used for both sexes.

Callirrhoe is a Greek mythological nymph and companion of Persephone. It offers nicknames Calli, Ro, Clio, and Coco.

The name Jordan comes from Yarden, which is also the name of the River Jordan in Hebrew. In Israel, Yarden is a Top 200 name for girls.

Kalliroi is a modern Greek form of the Classical name Callirrhoe, who in mythology was an ocean nymph who accompanied Persephone to the underworld. If you're looking for unusual names with ocean meanings, this should be on your list.