Jeopardy! The Greatest of All Time was a special tournament limited-run series of the game show Jeopardy! that took place in January 2020. The tournament was produced for ABC and aired on the network in prime time. This was the second time a Jeopardy! competition aired on network television (regular shows air in syndication); the first occurred in 1990 when the special tournament series Super Jeopardy! was carried by ABC.

The tournament featured former champions Ken Jennings, Brad Rutter, and James Holzhauer competing for a $1 million top prize and the recognition of being the show’s greatest champion of all time.Jennings won the tournament on January 14, 2020, with Holzhauer finishing second and Rutter third. With the $1 million prize added to his previous winnings across several game show appearances, Jennings surpassed Rutter as the highest-earning American game show contestant of all time, a record he had previously held twice.