The provided source material does not contain information regarding a city named Martinis in Romania. According to the source, "Martinis" is primarily identified as an Italian surname.
Notable individuals with this surname include Greek professional footballer Apostolos Martinis, Croatian operatic soprano Carla Martinis, and Italian partisan and paleontologist Elio Martinis. Other figures mentioned include American politician John Martinis, American physicist and professor John M. Martinis, and American biochemist Susan A. Martinis.