Oswaldo Rivas is an award-winning Nicaraguan photographer. He began in the world of photography in 1988 at the Nueva Nicaragua International News Agency (ANN) as a war correspondent covering the country's civil war. In 1993 he was head of photography for La Tribuna. From 1997 to 2020, he was part of the team of photojournalists for Reuters. He currently works as a freelancer. His work has appeared in the New York Times in the US, El País in Spain, Gente in Italy, La Reforma in Mexico, and many more outlets.