Hillary Rika Hauser (born in 1944) is an American photojournalist and environmental activist with a focus on the oceans — underwater diving adventure, politics, and conservation. In 2009, in recognition of her ocean environmental work as it relates to underwater diving, Hauser received the NOGI Award for Distinguished Service from the Academy of Underwater Arts and Sciences. In 2013 the Academy elected Hauser as President of its Board of Directors.