Celina (aka. Nesia) is a mermaid from Andros. She lives in the Underwater Kingdom of Andros. Celina mainly appears in Winx Club season 3. She is the Mermaid of the Sweet Song. She is also good friends with Kalia,Tala, and Tressa.
Celina was tired and Kalia was trying to save her, but a giant tidal-wave was about to hit them. Fortunately Aisha came to their rescue and took them aboard a flying ship. After Valtor's defeat, she returns home to the Underwater Kingdom, where she greets her friends, Kalia, Tala, and Tressa, leading all of them to dance, rejoicing over their regained freedom.
Celina has long violet hair with a fringe and a comb decorated with stones and pearls. Her eyes are light green and she wears an eye shadow of a mauve sweet. Her brassiere is yellow and spangled and tied in her neck by a garland of sea flowers. She wears green net mittens adorned with pearls and a long yellow with sequins, of simple form, adorned with a green veil, itself adorned with jewels.
Celina is a very gentle and sweet mermaid. She is also very innocent and fearful. Like Musa, Celina loves to sing and is known for being the mermaid with the most harmonious voice. Her short yellow wings produce a soft sound, accompanied by her songs.
- Celina is misnamed as Nesia in the Giochi Preziosi doll line and in the books by Fabbri.