Animal BreedingIn the epilogue of the manga, Satoshi intends to carry on Tamaki and Mori's legacy by starting a new Host Club. To persuade Chika to join him, he promises that there will be lots of cute animals, thus creating the Animal Breeding Club instead. The club works with the Gardening Club to feed and take care of rabbits, chicks, hamsters, tanuki, and red pandas. The club is very popular with the ladies.
The Basketball Club is listed as one of the talented and top-class clubs eligible to compete for rights to the Central Salon in Chapter 22.
Known members: Itsuki Futenma (Vice-captain), Class 3-C
There are two seen, but never named, members of the Broadcasting Club - the camera operator and the reporter. The club covers school activities of interest, such as the competition race for rights to the Central Salon in Chapter 22 and the duel between Honey and Mori in Chapter 72.
It is briefly mentioned in Chapter 57 that the Dance Club was too busy to accept Tamaki's invitation to bellydance for the Host Club's Turkish cosplay.
IkebanaIkebana is the Japanese art of flower arrangement. The Ikebana Club is listed as one of the top-class clubs eligible to compete for rights to the Central Salon.
JudoJudo is a Marital Art that focuses on grappling, pinning, and throws.
KarateKarate is a Martial Art that focuses on striking, kicking, and blocks.
Kendo is a Martial Art similar to fencing that requires bamboo swords and protective armor. The Kendo Club has their own practice building. Mori is revered by his kohai in this club, as in all his Martial Arts clubs, and sometimes leaves the Host Club early to attend.
Known members: Takashi Morinozuka
Known members: Kotaro Mitake (Captain), Ren Chitosebara (Vice-captain), class 2-D
Ouran's Student Council is a group of 3rd-year students who organize schoolwide functions and other major events. They also serve as ambassadors to visitors such as Princess Michelle of Monale.
Known members: Toshiyori Matsudaira (President), Kanan Matsuyama (Secretary)