I think it’s just the Catholic Church, but it’s worth mentioning that the Catholic Church has two rites. In addition to Roman Catholicism, there’s also Eastern Catholicism. Both are in communion with Rome, both are lead by the Pope, but they have some differences. One big difference is that in Eastern Catholicism married men can be ordained as Priests (though they can’t remarry if their wife dies, and they can’t be promoted to Bishop while married).
Apart from that there are sedevacantists and anti-Popes and Vatican II rejectors, but not in notable numbers.