McCullough is a surname that can refer to various notable individuals, including authors, historians, and politicians. One of the most famous bearers of the name is David McCullough, an American author and historian known for his Pulitzer Prize-winning biographies, such as those of John Adams and Harry S. Truman. In addition to individuals, McCullough can also refer to places, such as McCullough Hall in various universities or McCullough Park in certain cities. The name is often associated with contributions to literature, history, and public service, reflecting a legacy of achievement in diverse fields.