Sarah Neufeld (born August 27, 1979) is a Canadian violinist who is known for her work with indie rock band Arcade Fire, with whom she is a former core member and currently a touring member. She has contributed to each of the band's studio albums to date. Neufeld is also a member of the instrumental band Bell Orchestre.

Neufeld has released three solo studio albums: Hero Brother (2013), The Ridge (2016) and Detritus (2021), and released a collaborative album, Never Were the Way She Was, with her husband Colin Stetson in 2015. In 2024, Neufeld released the collaborative album, First Sounds, with her Arcade Fire and Bell Orchestre bandmate Richard Reed Parry and cellist Rebecca Foon.