1. Nika (Mónica Rodríguez) - spanish singer-songwriter. 2. Nika (Dominika Domczyk) - vocalist of polish punk rock band Post Regiment 3. Nika - dutch dubstep DJ 4. Nika - finnish r&b singer 5. Nika (Mónika Veres) - Hungarian singer, vocalist 6. Nika - Estonian pop singer 7. NIKA (니카) - Korean-German singer, formerly known as Monika (모니카).