Lieutenant Frank Spangenberg (born July 26, 1957) garnered fame in 1990 when he set the five-day cumulative winnings record on the game show Jeopardy!, becoming the first person to win more than $100,000 in five days on the show. He has been called one of the "veritable legends" of the show.

Because the clue values were doubled in 2001 and the five-day limit for returning champions was lifted in 2003, Spangenberg's record held until 2019 when super-champion James Holzhauer won $298,687 in his first five games.

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