Don Vaillancourt (they/them) is a French-Canadian, non-binary sound designer, musician, Dj, vinyl collector, artist, and outreach/harm reduction worker who found common ground marrying their passion for the arts with their compassion in connecting with marginalized communities. Don worked as an outreach/harm reduction worker at The 519 and volunteered their time there for over two decades and is one of the founding individuals responsible for co-facilitating their Breaking The Ice (BTI) program, which focuses on supporting people who use crystal meth in Toronto’s Downtown east district, and has a specific focus on understanding the needs and barriers faced by LGBTQ2S people who use drugs and who also face mental health barriers. Don also supported The 519's Sunday Drop-In and Meal Trans by creating artistic-therapeutic programming.

They also have extensive lived experience with bipolar disorder and body dysmorphic disorder. Don is a trauma survivor and implements their complex history as an educational tool in the work they do. Additionally Don is a member, Peer Support worker/Active Listener, teaching assistant and is currently the Media Lab Mentor at Workman Arts. Don was a Fellow at Yale University’s Lived Experience Transformational Leadership Academy and they graduated in 2022 and through that program has given workshops at CAMH's Collaborative Learning College in art, textiles, and music production and is a mentor to current students of the same program.

Don is currently a mentor for Yale University's Lived Experience Transformational Leadership Academy.