Arena \a-re-na\ as a girl's name is of English origin. 19th-century Americans may have named their daughters Arena as homage to Christian martyrs who were killed in the arenas of ancient Rome.
Baby names that sound like Arena are Arene, Aren, Arona, Arna, Aruna, Irena, Erena, Arina and Urena. Other similar baby names are Abena, Adena, Alena, Amena, Drena, Ardena, Arela, Areta, Arlena, Avena and Trena.