Johnston Little League (JLL) is a community youth baseball league based in Johnston, Iowa, a northwest suburb of the Des Moines metropolitan area. Serving approximately 650 players, it is one of the largest Little Leagues in the state. The league offers programs for children at different ages and stages, from introductory baseball through more advanced competition.

Younger players can learn the game in Big Bats, an alternative to tee-ball that uses a lightweight bat and wiffle ball, or in coach-pitch divisions for ages 6 and 7. Older players progress through divisions including Minor A, AA and AAA, and Major, with opportunities to develop pitching, fielding and game skills. The Intermediate 50/70 division helps players transition toward full-size baseball fields and rules. JLL also provides seasonal tournaments and All-Star opportunities.

The organization supports families and volunteers with registration information, schedules, rules, safety policies, coaching resources and volunteer opportunities. Its website shares field updates, news, sponsorship information and details about facilities and field use.