List of The New York Times number-one books of 2004

The American daily newspaper The New York Times publishes multiple weekly lists ranking the best selling books in the United States. The lists are split in three genres—fiction, nonfiction and children's books. Both the fiction and nonfiction lists are further split into multiple lists.

Fiction
The following list ranks the number-one best selling fiction books, in the hardcover fiction category. Dan Brown's The Da Vinci Code, released in the spring of 2003, was the best seller for a second straight year, spending a cumulative 28 weeks at the top.

Nonfiction
The following list ranks the number-one best selling nonfiction books, in the hardcover nonfiction category.