Yoannah \yo(an)-nah\ as a girl's name is a variant of Yoana (Hebrew), and the meaning of Yoannah is "God is gracious".

The baby name Yoannah sounds like Ioannah, Yoanna and Yoanah. Other similar baby names are Liannah, Leannah, Lannah, Dannah, Diannah, Hannah, Channah, Ioanna, Yohanna, Joanna, Ioanah, Jannah, Luannah, Nonnah, Reannah, Roanna, Shannah, Sannah, Yanna, Yoninah, Yonah and Ysanna.