YMCA
Young Men's Christian Association

Note: YMCA is the current name of the organization that previously used this as an acronym for Young Men's Christian Association. The organization now also comprises women.

Citing Wikipedia[1], the YMCA is today

YMCA, sometimes regionally called the Y, is a worldwide organisation based in Geneva, Switzerland, with more than 64 million beneficiaries from 120 national associations. It was founded on 6 June 1844 by Sir George Williams in London, originally as the Young Men's Christian Association and aims to put Christian principles into practice by developing a healthy "body, mind, and spirit".

WMCA operates globally on a Federation model, with national organizations part of an Area Alliance (Europe, Asia Pacific, the Middle East, Africa, Latin America and the Caribbean, the United States, and Canada), and a World Alliance of WMCAs.

According to the World YMCA's official webcite[2]:

World YMCA supports and facilitates YMCAs across the globe to provide young people with safe spaces and opportunities to take an active role in transforming their communities.

Bibliography
1. Wikipedia - YMCA, visited 2019-12-02