This article is from the Juggling FAQ, by Juggling Information Service firstname.lastname@example.org with numerous contributions by others.
Of course. The International Jugglers' Association (IJA) has nearly
3,000 members in several countries, although most are in the US.
It publishes Juggler's World (an excellent magazine), an annual membership
roster, and hosts a large annual festival, including many shows
and competitions, and more. The European Juggling Association was
created to host a large annual juggling convention in Europe. The
New Zealand Juggling Association publishes the Flying Kiwi magazine
and hosts an annual convention.