Roger Niello (born 2 June 1948, in San Francisco, CA) is a Republican who served in the California State Assembly from 2004 to 2010. He represented California's 5th Assembly District, which includes the Sacramento County suburbs and towns of Arden-Arcade, Carmichael, Citrus Heights, Fair Oaks, Folsom, North Highlands, McClellan Park, Orangevale, Natomas, Sacramento and the Placer County town of Granite Bay.