Monchhichi (モンチッチ, Monchitchi) is a line of Japanese stuffed monkey toys from the Sekiguchi Corporation, first released in 1974. They were licensed by Mattel in the United States until 1985, and later distributed worldwide directly by Sekiguchi.

Five television series were produced based on the characters: The Japanese anime series Monchhichi Twins (ふたごのモンチッチ, Futago no Monchhichi) in 1980, produced by Tokyo 12 Channel (now TV Tokyo), the American cartoon series Monchhichis in 1983, produced by Hanna-Barbera Productions, the French cartoon series Kiki, le Kiki de tous les Kiki in 2001, produced by Ben-J Productions, the Japanese stop-motion series Monchhichi (モンチッチ, Monchhichi) in 2005, by Kids Station and the French CGI series Monchhichi Tribe (La Tribu Monchhichi) in 2017, produced by Technicolor Animation Productions.