Theodore Augustus Bell III (July 3, 1946 – January 20, 2023) was an American author of suspense novels such as Hawke and Assassin, Pirate, Spy, Warlord, Phantom, and Overkill, released in May 2018.

He is best known for his New York Times Bestselling series of spy thriller novels (mentioned above) featuring the character Lord Alexander Hawke.

He served on the advisory board of General George Washington's Mount Vernon (in Fairfax County, Virginia) under former Secretary of the Army, Togo D. West Jr. Bell's former wife is Greenwich, Connecticut-based Evelyn Byrd Lorentzen (known as Evelyn Lorentzen Bell), a relative of the founder of Richmond, Virginia, William Byrd II.

Bell's World War II time-travel adventure novel, Nick of Time, was published in a new hardcover illustrated edition by St. Martin's Press in May 2008.

It features Nick McIver, along with Lord Richard Hawke, Archibald "Gunner" Steele, Kate McIver (Nick's younger sister), Commander Hobbes (Lord Hawke's colleague, a brilliant weapons designer), the murderous pirate captain Billy Blood, and his cohort Snake Eye.

Entitled The Time Pirate, it deals with the Nazi invasion of the Channel Islands and Nick McIver's role in George Washington's victory over Cornwallis at the Battle of Yorktown in 1781.