"Variant of Maria"
The name Mariona is commonly a female name from the "Spanish" origin.
Mariona is a Catalan feminine name formed from Maria, with the Catalan suffix -ona added to the root. It is documented in Catalan naming tradition and is used in Catalonia and other Catalan-speaking areas as an elaborated or familiar form of Maria. Its first appearance in United States birth records in the 1990s reflects immigration and record-keeping rather than the name's history in Catalan, where it long predates that.
Maria means "A combination of Elly and May, Old soul and great, pink / white blossom or born in the month of May.".
The pronunciation of Mariona is muh-ree-OH-nuh.