Firi Rahman was born in Colombo, Sri Lanka in 1990. He followed an art and design course at the Foundation of Art and Design, City and Guilds at Manchester College, United Kingdom. He began working with Saskia Fernando Gallery in 2015 when he presented his first solo exhibition titled 'Unconventional Beauty'. In the same year he participated at Colomboscope: Shadowscenes and presented his work at the Sri Lanka Archive of Contemporary Art, Design and Architecture in Jaffna, Sri Lanka.
In 2016 he presented his second solo exhibition titled 'Prediction Extinction' at Saskia Fernando Gallery. His works were selected for both the Wings Exhibition at the JDA Perera Gallery and the Colombo Art Biennale: Conceiving Space. In the same year he joined the project Building Bridges as a facilitator.
He was selected by curator Natasha Ginwala to participate in Colomboscope in 2017 and 2019. His works were presented at two large scale exhibitions in 2018, namely the Human Rights Exhibition curated by Chandrgauptha Thenuwara at JDA Perera Gallery and Embodying Power curated by Sandev Handy at the Sapumal Foundation.
In 2018 he co-founded the We Are From Here Project, a community based art project. He also worked with marine biologist, Asha de Vos, in an art residency on a research boat to learn about the shifting baselines and the marine ecosystem.
His works belong to private collections in Sri Lanka, Switzerland, India, United Kingdom, and USA.