Yuggoth is computer program developed by Hypnos in Digimon Tamers. It's main purpose was to completely delete target Digimon, stopping it from Bio-Emerging in the Real World. It was ineffective in the time when Devas attacked. Another Digimon called Musyamon was also able to destroy Yuggoth. It was later downloaded into ZERO ARMS:Grani as "Yuggoth Blaster". Yuggoth's graphical form was three balls linked together by energy chain.
Yuggoth is fictional planet in the Cthulu Mythos, which inspired many aspects in Digimon Tamers's universe.