Mireia is of Catalan origin, derived from the Latin word "Mirandus," which means admirable or wonderful. It is pronounced /miˈɾe.jə/. This name gained popularity in Catalonia during the 20th century and has since been widely used throughout Spain and among the Catalan diaspora worldwide. Mireia is composed of two elements: 'Mira,' meaning to look at or admire, and 'Eia,' an exclamation of joy or surprise. Therefore, Mireia can be interpreted as "a wonderful sight" or "admirable joy." The name Mireia is also associated with the goddess of spring in Catalan mythology. In popular culture, it has been used for characters in films such as "Mireia" (1998) and "El nombre de la rosa" ("The Name of the Rose") by Umbral Producions.
The name Mireia has seen varied popularity over the years, with peaks in 2016 and 2021, and a total of 43 births recorded since 2005.