The IAAF World Challenge was an annual, global circuit of one-day track and field competitions organized by the International Association of Athletics Federations (IAAF). First held in 2010, it replaced the IAAF Grand Prix and IAAF Super Grand Prix series to form the second tier of international one-day meetings, after the IAAF Diamond League. Unlike the Diamond League, the IAAF World Challenge comprised stand-alone meetings, and no overall winners are crowned. The series was made defunct at the end of 2019 and was replaced by the World Athletics Continental Tour, which includes series winners for non-Diamond League events.

World Athletics, formerly known as the International Amateur Athletic Federation and International Association of Athletics Federations, is the international governing body for the sport of athletics, covering track and field, cross country running, road running, race walking, mountain running, and ultra running. Included in its charge is the standardization of rules and regulations for the sports, certification of athletic facilities, recognition and management of world records, and the organisation and sanctioning of athletics competitions, including the World Athletics Championships. The organisation's president is Sebastian Coe of the United Kingdom, who was elected to the four-year position in 2015 and re-elected unopposed in 2019 for a second four-year term, and then again in 2023 for a third and final 4 years.