Budapest Association for International Sports (BAIS) is a youth-led, volunteer-based non-profit organization dedicated to promoting physical activity, healthy lifestyles, intercultural understanding, active citizenship, and participation through sport-based non-formal education. The organization operates locally in Budapest and internationally through projects such as Erasmus+.

Locally, BAIS focuses on providing engaging and active events for internationals living in Budapest, while also welcoming local participants. These events include activities like hiking, kayaking, ultimate frisbee, and caving, all led by members and open to the public. BAIS also collaborates with Budapest Hikers to organize hikes across Hungary.

Internationally, BAIS creates learning and mobility opportunities through sports activities, youth exchanges, seminars, and training courses. As a leading Hungarian NGO in Education through Sport (ETS), BAIS strives to make physical activity accessible and enjoyable for everyone, earning their fitting name, "We Move Budapest." For those interested, involvement opportunities include becoming a member, volunteering, donating, and exploring vacancies within the organization.