- Traditional Chinese Character(HanT):
無間道
- Simplified Chinese Character(HanS):
无间道
- Bopomofo(Mandarin Phonetic Symbols): ㄨˊ ㄐㄧㄢ ㄉㄠˋ (ㄨㄐㄉ)
- Bopomofo(Zhuyin Keyboard Input/IME): "j6ru0 2l4" (j6ru02l4)
- (ASCII) Hanyu Pinyin: "wujiandao" "Wu2Jian1Dao4" "Wu2 Jian1 Dao4" (WJD)
- (Latin) Hànyǔ Pīnyīn: WúJiānDào [ Wú Jiān Dào ]
- (英文翻譯) English Translation: "Infernal Affairs"
- (西語翻譯) Traducción Español: "Mugendo"
- (日文翻譯) 日本語翻訳: "無間道"