Julia Shammas Holter (born December 18, 1984) is an American singer-songwriter, record producer, composer, artist, and academic, based in Los Angeles.

Holter composed the score for the 2020 film Never Rarely Sometimes Always and released Behind the Wallpaper (2023) in collaboration with Spektral Quartet and Alex Temple.

Holter has also collaborated with other musicians, including Nite Jewel, Laurel Halo, Ariel Pink, Ducktails, Linda Perhacs, Michael Pisaro, and Jean-Michel Jarre.

[3] In 2010, she began playing with Linda Perhacs' band and released a CD-R titled Celebration and a collection of live recordings.

The album drew comparisons to works by such artists as Laurie Anderson, Julianna Barwick, Kate Bush, Joanna Newsom, Grouper, and Stereolab, and received many positive reviews.

[10] In addition to collaborating with other California-based musicians like Nite Jewel (Ramona Gonzalez), Holter released her third album, Loud City Song, in August 2013 on Domino Records.

This program included performances by Laurel Halo, Josephine Foster, Maya Dunietz, Jessica Moss and other artists.

[17] On January 9, 2024, Holter announced her sixth studio album, Something in the Room She Moves, which was released to critical acclaim on March 22 by Domino.

[19] Under the Radar similarly compared her to other female artists saying; "Holter is Siouxsie Sioux meets Kate Bush, with a matchstick intensity, relighting her own wick by the conversation in her voice, her diaphragm shifting between instruments".