When the sport returned to the Olympic Games in 1920, the competition was structured as a set of weight classes. The number of classes and weight limits for each class have changed several times, as shown in the following table.
As of the 2024 Summer Olympics and Court of Arbitration for Sport decision of March 2022 to disqualify a gold medalist in the weightlifting men's 77kg event at the 2016 Summer Olympics (medals in this event have not yet been reallocated as of August 2024).
The table shows those who have won at least 2 gold medals. Boldface denotes active weightlifters and highest medal count among all weightlifters (including these who not included in these tables) per type.