Maureen Elizabeth Reagan (January 4, 1941–August 8, 2001) was the only biological child of the former President Ronald Reagan and his first wife, Hollywood actress Jane Wyman, to survive infancy. Another daughter, Christine, was born prematurely and died the day after her birth. The couple's son, Michael Edward Reagan, was adopted.

As a young woman, Reagan acted in films. She married and divorced John Filippone and David G. Sills, before marrying her third husband, Dennis Revell, in 1981.

During her lifetime she was involved with the Republican Party and worked as a political activist, radio talk show host, commentator and health care advocate. She was regarded as the most politically skilled of Ronald Reagan's four children. Her most active political years were in the 1980s, when she was a member of the California World Trade Commission, chairwoman of the United States delegation to the United Nations' Decade for Women Conference in Kenya, in 1985; co-chairwoman of the Republican National Committee, and chairwoman of the Republican Women's Political Action League.