Mainland China usually goes with 哈利·波特 for the boy wizard, while 哈里·波特 (with 里 instead of 利) is also common and matches the Hari/Harry transliteration. Both refer to the same character; the middle dot (·) marks a Western given-name + surname.
memory
波特 = 'Potter' is just phonetic - 波 (wave) + 特 (special). Same 波特 also means 'baud' in computing and 'porter' (the beer).