List of Famous people born in Delaware, United States of America

Din Yero Thomas is a retired American mixed martial artist who was featured on The Ultimate Fighter 4: The Comeback. In the Ultimate Fighting Championships, Thomas is a UFC 41 Lightweight Tournament Semifinalist. He holds a Black belt in Brazilian Jiu-Jitsu under Ricardo Liborio and currently runs two successful Brazilian Jiu-Jitsu and MMA academies in Port St. Lucie, Florida. Thomas holds notable victories of Jens Pulver, Matt Serra, and Clay Guida.

William Gibson Arlington Bonwill was an American dentist and researcher. The Bonwill Triangle is named after him.

David Christopher Sheridan is an American actor, comedian, writer, producer and musician. He played Special Officer Doofy in the comedy Scary Movie (2000).

Robert Brett Lunger is an American racecar driver and Vietnam War veteran.

Francis Joseph "Frank" Masley was an American luger. He competed in the 1980, 1984, and 1988 Winter Olympics. He was the first Olympic flag-bearer in USA Luge history in the 1984 Olympic opening ceremonies.

Cynthia Ann Christine Rothrock is an American martial artist and actress in martial arts films. Rothrock holds black belt rankings in seven styles of martial arts and was a high level competitor in martial arts before becoming an actress.

Arturs Krišjānis Kariņš is a Latvian–American politician, linguist, and businessperson who has served as Minister of Economics, a Member of the European Parliament, and is currently the Prime Minister of Latvia. Born in Wilmington, Delaware, United States, to parents who had left Latvia during the Soviet occupation, he was active in the American Latvian community throughout his youth.

Pierre Samuel "Pete" du Pont IV was an American businessman, lawyer and politician from Rockland, in New Castle County, Delaware, near Wilmington. He was the United States Representative for Delaware from 1971 to 1977 and the 68th governor of Delaware from 1977 to 1985. He was a member of the Republican Party.

Edward Willis Redfield was an American Impressionist landscape painter and member of the art colony at New Hope, Pennsylvania. He is best known today for his impressionist scenes of the New Hope area, often depicting the snow-covered countryside. He also spent his summers on Boothbay Harbor, Maine, where he interpreted the local coastline. He frequently painted Maine's Monhegan Island.

Michael Francis A'Hearn was an American astronomer and astronomy professor at the University of Maryland College of Computer, Mathematical, and Natural Sciences. He was also the principal investigator for NASA's EPOXI mission.