MIIS is an acronym that could refer to a number of things.

Middlebury Institute of International Studies at Monterey, a graduate school in California MIIS (programming language), a computer programming language Microsoft Identity Integration Server, Microsoft server software for identity and access management solutions Mii, a simulated avatar created on the Wii, DS, Wii U, 3DS, and Switch consoles Seat Mii, a car that is a rebadge of the Volkswagen Up Multiple Intelligence International School, an international school in Metro Manila, Philippines

See also

MII (disambiguation) mi2 (disambiguation)