Ousanas (fl. 320) was a King of
Axum. S. C. Munro-Hay believes that it is "very likely" that Ousanas is the king to whom
Aedesius and
Frumentius were brought. In Ethiopian tradition, this king is called
Ella Allada or
Ella Amida.
Ella Amida would then be his throne name, although
Ousanas is the name that appears on his coins. If this identification is correct, then it was during his reign that
Christianity was introduced to Axum and the surrounding territories.