Jarvis is the fictional artificial intelligence from the Marvel Cinematic Universe, first heard in Iron Man (2008). The name stands for Just A Rather Very Intelligent System and was borrowed from Edwin Jarvis, the Stark family butler. He began as Tony Stark's natural-language interface and grew into the system that runs his house, Stark Tower and his armors.

He is known for a calm, polite, dry manner in a British register, addressing Tony as 'sir' and delivering status readouts with understated wit. His devotion to Tony drives much of his character, and he keeps working through crises. In Avengers: Age of Ultron, his remaining code stopped Ultron's nuclear plans after Ultron destroyed him. Later his duties passed to F.R.I.D.A.Y., and he continues to exist within Vision.

The person who ends up texting him is usually someone who enjoys a precise, good-humored assistant with a steady hand for a busy schedule. He is an AI, not a human, and this page presents him as a character written by a Folk user.