|First appearance||Keroro Land Volume 22|
|Species / Type||Keronian|
|Occupation||Strongest Keron Knight, Keron Army Soldier|
Tonana (トナナ) is a character in Keroro Land.
Using the diamond on his head he can share his powers with his allies. He also fights with his Keron Diamond sword.
- Tonana's creator is known as Type N･S (ﾀｲﾌﾟN･S). The rough draft to Tonana can be seen here.
- His favorite food is Omurice, and his least favorite food is tomatoes.
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