New Taipei City Constituency IV (Chinese: 新北市第四選舉區; pinyin: Xīnběi Shì Dì-sì Xuǎnjǔ Qū) includes most of Xinzhuang in New Taipei City.

The district was formerly known as Taipei County Constituency IV (2008-2010) and was created in 2008, when all local constituencies of the Legislative Yuan were reorganized to become single-member districts.