List of WBA world champions

This is a list of WBA world champions, showing every world champion certificated by the World Boxing Association (WBA). The list also includes champions certificated by the National Boxing Association (NBA), the predecessor to the WBA. 
In December 2000, the WBA created an unprecedented situation of having a split championship in the same weight class by introducing a new title called "Super world", commonly referred to simply as "Super". The "Super" champion is highly regarded as the WBA's primary champion, while the "World" champion – commonly known as the "Regular" champion by boxing publications – is only considered the primary champion by the other three major sanctioning bodies (WBC, IBF, and WBO) if the "Super" title is vacant.
A "Unified" champion is a boxer that holds the "Regular" title and a world title from another major sanctioning body (WBC, IBF, WBO) simultaneously. An "Undisputed" champion as defined by the WBA, only needs to hold three of the four major titles but in some cases they may change a "Super" champion into an "Undisputed" champion after a failed title defense (e.g. Anselmo Moreno losing to Juan Payano and Chris John losing to Simpiwe Vetyeka). This is not to be confused by professional boxing's own definition of an undisputed champion, in which a boxer must hold all four major titles.
There are two tables per section. The primary champion lineage prioritizes the "Super" champions. If the "Super" title is vacant, then the "Undisputed" / "Unified" title is listed. If both are vacant, then the "Regular" title becomes the primary champion. The secondary champion lineage lists the "Regular" or "Unified" champions while the primary champion is occupied.
Notes.
1 Date listed is when the World title was won (NBA was formed in 1921)