Hiromi Marissa Ozaki (born 1 July 1985), better known by her pseudonym Sputniko!, is a British/Japanese artist, designer and entrepreneur. She specializes in the field of speculative and critical design. She is known for her films and multimedia installation works inspired by emerging technologies’ possible impact on society and values – with a focus on gender issues. After majoring in BSc Mathematics and Computer Science at Imperial College, London, she pursued a master's degree in Design Interactions at the Royal College of Art.