The Universe Championships are annual worldwide bodybuilding events organised by the National Amateur Body-Builders' Association (NABBA). Originally promoted as the Mr. Universe contest, the event was expanded to include women's classes in 1968. Notable previous winners include bodybuilder, actor, and former governor of California Arnold Schwarzenegger and bodybuilder and actor Steve Reeves (1926–2000).
The Universe Championships includes the following classes:
In 1948 David Johnston, then editor of Health & Strength magazine, and his team organised the Mr. Universe contest in London to coincide with the Olympic Games. The event drew great attention from bodybuilders and the general public who packed the Scala Theatre to see the spectacle. John Grimek earned the inaugural title with Steve Reeves placing second. Reeves eventually found his way to the microphone to declare, "I think that John Grimek is the greatest bodybuilder who ever lived!"
While there was no contest held in 1949, behind the scenes, members of the Health & Strength League were arranging the formation of the National Amateur Body-Builders' Association or NABBA. NABBA announced that it would be hosting the Mr Universe contest again in 1950. Steve Reeves returned to England to be crowned champion that year. Despite being the first NABBA Mr Universe, Steve Reeves was not chosen as the silhouette for the NABBA logo. That distinction would go to John Grimek and his likeness is still used to this day as the emblem of the association.
When Oscar Heidenstam became the NABBA Secretary in 1955, after a highly successful competitive career, he quickly became the main driving force of not only NABBA but also the Mr Universe contest. Around the same time, a network of area shows in the UK was established to increase membership.
The early success of the Mr Universe was underpinned by the support of many of the big names taking part such as John Grimek, Steve Reeves, Reg Park and Bill Pearl. Into the 1960s and 1970s the Mr Universe also became the launching pad for many of the famous bodybuilders of the day such as Arnold Schwarzenegger, Lou Ferrigno, Serge Nubret and many others.