Paz Lenchantin (born December 12, 1973) is an Argentine-American musician. She is best known as the former bass guitarist and backing vocalist of the alternative rock band Pixies. Lenchantin joined the band in 2014, following the departure of founding member Kim Deal, and recorded three studio albums before leaving in 2024.

Prior to joining Pixies, Lenchantin was a member of Entrance, A Perfect Circle, Silver Jews and Zwan. In April 2024, Consequence named Lenchantin the 75th greatest bass guitarist of all time, noting: "Not only did she fit in beautifully in [A Perfect Circle and Pixies], but she was also a shining light in Billy Corgan’s short-lived band Zwan. Along with holding down the low-end, she’s also a wonderful vocalist and a skilled violinist."