Edgar W. A. Maass (October 4, 1896 – January 6, 1964) was a German-American novelist of historical fiction.

Maass was born in Hamburg, Germany, the son of a merchant. His younger brother Joachim Maass was also a writer.
Maass fought in World War I and then studied medicine at the University of Rostock, graduating in 1921, and pursuing additional studies until 1924.

He worked as a research chemist in Germany before moving to the United States in 1926. He became a citizen in 1933. Maass' literary career began in the mid-1930s. One of his first novels, Verdun, was inspired by his experiences in the war.

A resident of New Jersey, Maass died in Paterson, New Jersey at age 67 on January 6, 1964.