The Seattle Trans Underground Film Festival (STUFF) is a film festival dedicated to supporting trans cinema and its production by connecting trans filmmakers with their audiences. The festival aims to celebrate trans lives by showcasing stories through film, programming works by and about trans people across all genres. Founded by local film festival staff, volunteers, and enthusiasts, STUFF continues Seattle's twenty-year tradition of hosting an annual transgender film festival. The inaugural festival is scheduled to take place from October 16-19, 2025, at the Northwest Film Forum.