Ian Tuason is a Filipino-Canadian filmmaker and author. He is best known for directing the horror film Undertone (2025).

He is also known for his live-action virtual-reality and POV horror shorts, including Sit Back, Uncanny Valley, and Experience: Colorblind, which collectively amassed millions of views online. In 2025, it was announced that Tuason would team up with James Wan and Blumhouse on the eighth entry in the Paranormal Activity series, marking his transition from digital-native and VR horror into a major theatrical release. It's a natural evolution for Tuason, as his work is defined by first-person perspective, diegetic sound, and minimal environments, placing viewers directly inside the horror rather than observing it — an approach closely aligned with found footage’s emphasis on immersion and authenticity.