TR/ST (formerly Trust) is the dark electropop project from Toronto, Canada.

Formed in January 2010 under the name Trust as a duo of Robert Alfons and Maya Postepski. Maya Postepski left in 2012, and since then it became a solo project of Robert Alfons, changing the name to TR/ST in 2015.

Current members:
Robert Alfons – music production, vocals (2010–present)

Former members:
Maya Postepski – music production (2010–2012), live drums (2010–2012) (also session music production (2017–2019), live keyboards (2019))

Current session/touring members:
Esther Munits (aka Esther Blue) – keyboards (2013–present)
Lia Braswell – drums (2019–present)

Former session/touring members:
unknown name – keyboards (2011–2012)
Cameron Findlay (aka Kontravoid) – drums (2012)
unknown name – keyboards (2012)
Anne Gauthier – drums (2013–2018)
Maya Postepski – session music production (2017–2019), live keyboards (2019)