Dirk Pitt is a fictional character created by American novelist Clive Cussler and featured in a series of novels published from 1976 to 2021. Pitt is a larger-than-life hero reminiscent of pulp magazine icon Doc Savage. Pitt is a citizen of the United States, on loan from the United States Air Force with the rank of Major, after serving in the Vietnam War as a pilot. He manages to find adventure with his childhood best friend, Al Giordino, despite ending up with an ostensibly desk-bound role as the head of the National Underwater and Marine Agency. Pitt has a commanding presence, a quick wit, and a considerable collection of classic cars.

Clive Eric Cussler was an American adventure novelist and underwater explorer. His thriller novels, many featuring the character Dirk Pitt, have been listed on The New York Times fiction best-seller list more than 20 times. Cussler was the founder and chairman of the National Underwater and Marine Agency (NUMA), which has discovered more than 60 shipwreck sites and numerous other notable underwater wrecks. He was the sole author or main author of more than 80 books.