Cognomen Яана (Jaana 
, Yaana 
, Яана 
) , all over the world, is quite a common family name. The cognomen Яана is characteristic of Finland, where it is quite a rare surname, Japan, where it is a rare surname, and India. In absolute terms, this name is the most popular in India, Japan, and Nigeria. Likewise, Яана is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jaana | Finland, Sweden, United States, India, Japan |
| Yaana | Australia, United States, India, Indonesia, Nigeria |
| Яана | Kazakhstan, Russia |
Hannelis, Hannelore, Hannie, Iaana, Ioanna, Iohanna, Jana, Jenna, Jo Anna, Jo-Anna, Joan, Joana, Joanna, Joanne, Johana, Johanna, Johanne, Jóhanna, Siobhán, Siwan, Yana, Ιωάννα, Дженна, Джоан, Джоанн, Джоанна, Жоана, Жуана, Иоганна, Йоана, Йоанна, Йохана, Йоханна, Сиван, Ханнелоре, Ханни, Шиван, Юханна, Яна, Іванна, Јана, ג'אנה, ג'ואן, ג'ואנה, ג'נה, הנלורה, יאנה, שבאן, שבון, שיבון, جانا, جوان, جوانا, جينا, জানা, ジェナ, ジョアン, ジョアンナ, ジョアンヌ, ジョーン, ヤナ, ヨハンナ, 乔安娜, 乔纳, 亚娜, 亞娜, 吉娜, 希欧布罕, 席芳, 珍娜, 琼, 瓊, and 雅娜
Николаева, and Богомолова