The 2018 Women's Softball World Championship was an international softball competition held in Chiba, Japan, from 2 August to 12 August.

Previous editions were sanctioned by the International Softball Federation, which governed the sport until its 2013 merger with the International Baseball Federation to create the WBSC.

As the winners, the United States earned the right to compete at the 2020 Summer Olympics.

[3] It was the last world title awarded under the championship format before the WBSC implemented the new world cup 4 year cycle.

Each group plays a single round robin.