A Luther Burger, or doughnut burger (among several naming variations), is a hamburger or cheeseburger with one or more glazed doughnuts in place of the bun. These sandwiches have a disputed origin, and tend to run between approximately 800 and 1,500 calories (3,300 and 6,300 kJ).

According to legend, the burger was named for and was a favorite (and possible invention) of singer-songwriter and record producer Luther Vandross. This origin is mentioned in a January 2006 episode of animated series The Boondocks, "The Itis", in which the character Granddad creates a restaurant which serves the burger.

Mulligan's, a suburban bar in Decatur, Georgia, serves the Luther Burger in addition to its "hamdog". The Daily Telegraph reported that Mulligan's may be progenitor of the burger when the owner substituted the doughnuts when running out of buns.

The Gateway Grizzlies baseball team of Sauget, Illinois have served the Luther Burger at their ballpark. Their version consists of a deep-fried Krispy Kreme doughnut around a black Angus all-beef patty, melted cheese, and two strips of bacon. Dubbed a cardiologist's worst nightmare, this burger is 1,000 calories (4,200 kJ). Aside from bringing in revenue from sales, it has drawn more fans to come out to the ballpark: apparently, attendance at games has increased and the burger is one of the most popular aspects of the park. The burger has met with criticism from burger purists and from people who are turned off by the thought of the taste and the health implications.

Paula Hiers Deen (born January 19, 1947) is an American cook, cooking show host, restaurateur, author, actress and Emmy Award-winning television personality. Deen resides in Savannah, Georgia, where she owns and operates The Lady & Sons restaurant with her sons, Jamie and Bobby Deen. She has published five cookbooks. Though married in 2004 to Michael Groover, she uses the surname Deen from her first marriage.

Deen was born in Albany, Georgia. Her parents died before she was 23, and an early marriage ended in divorce. In her 20s, Deen suffered from panic attacks and agoraphobia. She then focused on cooking for her family as something she could do without leaving her house. In 1986, she took a job as a bank teller, and later moved to Savannah, Georgia, with her sons. In 1989, she divorced her husband, Jimmy Deen, to whom she had been married since 1965. She was left with only $200. She then started a catering service, making sandwiches and meals, which her sons Jamie and Bobby delivered. She was recently revealed as a sufferer of type-2 diabetes.