Ronald Louis Ziegler (May 12, 1939February 10, 2003) was White House Press Secretary during United States President Richard Nixon's administration from 1969 - 1974 and Assistant to the President in 1974.

Ziegler was born in Covington, Kentucky. He worked on Nixon’s unsuccessful California gubernatorial election in 1962 as a press aide. Ziegler became the youngest White House Press Secretary ever at the age of 29 in 1969. He was a primary spokesperson for the Nixon administration during the Watergate political scandal.