The World Esperanto Youth Organization (TEJO) is an international organization that brings young people together through Esperanto, the language and community at the heart of its work. Its aim is to help youth connect across countries, take part in shared activities, and contribute to global discussions. TEJO welcomes members and volunteers, and works through national and specialist sections, committees, representatives, and an elected board.

The organization offers opportunities to attend international events, including the International Youth Congress, and to take part in activist training. Its activities also include external relations, audiovisual projects, and Kontakto, its magazine. Through Pasporta Servo, TEJO provides another way for members to engage with the international Esperanto community. The organization shares news, publishes updates, and invites young people to contribute to its work, represent TEJO, and join projects and committees. Individuals can become members, volunteer, or support its activities with donations. Based in Rotterdam, the Netherlands, TEJO also collaborates with partners and sponsors and maintains communication through its newsletter and social media channels.