Dennis H. Black (born December 18, 1939) is a former Democratic politician, from Lynnville Iowa.

Black holds a bachelor's degree in forest management and a master's degree in natural resource economics from Utah State University.

[1] He was an author of The Resource Enhancement and Protection (REAP) Fund while chairing the House Natural Resources Committee in Iowa's 73rd General Assembly.

[2] Black's career includes work as a natural resource analyst and consultant, service as the director of the Jasper County Conservation Board from 1970 to 2005, and the author of numerous natural resource management publications.

He has also chaired the Jasper County Economic Development Commission.