Dorothy Walker Bush LeBlond Koch (born August 18, 1959) is an American author and philanthropist.

Dorothy Walker Bush was born on August 18, 1959, in Harris County, Texas.

[2] Since her childhood she has spent summers and holidays at the Bush compound, a seacoast estate in Kennebunkport, Maine.

In 1975, during a visit to Beijing, she became the first person to be publicly baptized in the People's Republic of China since its communist government began discouraging foreign religious practices in 1949.

[6] She is the author of the book My Father, My President: A Personal Account of the Life of George H. W. Bush (2006).

Robert P. Koch was an aide to House Democratic leader Richard Gephardt, and is president of the California-based Wine Institute.