Cillín Johann Perera (born 12 March 1977) is an Australian photographer, entrepreneur and art collector who is best known for his "HomelessCEO" project.
Between 2013 and 2017, Perera documented his travels by uploading a photo of every flight and each day on Instagram.
The project encompassed more than 1000 images from dozens of countries and hundreds of flights and has been the subject of a touring exhibition.Perera is the Founder and chief executive officer (CEO) of companies in Europe, the Middle East and Asia, including Language Direct, an online language teaching company, and Avilinga, a company offering translation for the aviation industry.
He is a collector and patron of Australian Aboriginal art and is the founder of Australians for Overseas Representation.