Welcome to the O'Fallon Missouri YMCA, your gateway to fitness, family, and fun in the heart of St. Louis. Discover a vibrant community where friendships are forged, and where wellness becomes a way of life. From our state-of-the-art fitness center to our exhilarating group classes, and from our inviting pool to our engaging programs for all ages, we're your go-to destination for health, happiness, and connection. Join us as we create a positive impact together, one workout at a time.