John Winston Howard is an Australian former politician who served as the 25th prime minister of Australia from 1996 to 2007. He held office as leader of the Liberal Party of Australia, having previously served as the treasurer of Australia from 1977 to 1983 under Prime Minister Malcolm Fraser. His eleven-year tenure as prime minister is the second-longest in Australian history, behind only Sir Robert Menzies. Howard has also been the oldest living Australian former prime minister since the death of Bob Hawke in May 2019.

The Order of Merit is an order of merit for the Commonwealth realms, recognising distinguished service in the armed forces, science, art, literature, or the promotion of culture. Established in 1902 by Edward VII, admission into the order remains the personal gift of its Sovereign—currently Edward VII's great-great-grandson Charles III—and is restricted to a maximum of 24 living recipients from the Commonwealth realms, plus honorary members. While all members are awarded the right to use the post-nominal letters OM and wear the badge of the order, the Order of Merit's precedence among other honours differs between countries.