Meaning and name origin
Ryanna \r-yanna, rya(n)-na\ as a girl's name is of Irish and Gaelic origin, and the meaning of Ryanna is "king". Ryanna is a variant of Ryan (Irish, Gaelic): cross-gender use of the surname, probably influenced by Rhiannon.
Ryanna is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).
Ryanna is also pronounced similarly to Raeanna, Raina▼, Rana, Rania, Ranna, Rayana, Rayanna, Rayna, Reanna▼, Reannah, Rheanna, Rhianna▼, Rionna, Roana, Roanna, Ronna and Royanna. Other suggested similar baby names are Ayanna▼, Dyanna, Rayann, Reanne, Riann, Rianne, Roanne, Rohanna, Ryane, Ryann▼, Ryanne, Ryenne, Rynn and Tyanna. These names tend to be more commonly used than Ryanna.