French for "me" (first person, singular, reflexive pronoun) and used idiomatically and informally by English speakers to ironically indicate mock humility. ("Surely you weren't referring to moi?")

Daniel arap Moi (born 1924), President of Kenya from 1978 until 2002

Moment of inertia, also called mass moment of inertia and, sometimes, the angular mass, quantifies the rotational inertia of an object, i.e. its inertia with respect to rotational motion, in a manner somewhat analogous to how mass quantifies the inertia of an object with respect to translational motion.

The Moi is species of threadfin cultivated in Hawaiian waters.

Multiplicity of infection, the number of viruses that infect a single bacteria on average.

Moi International Sports Centre, a multi-use stadium in Kasarani, outskirts of Nairobi, Kenya.

Moi University, a university in Eldoret, western Kenya.

Moi, Norway, the administrative centre of the Lund Municipality, in Rogaland County in Norway.

Alii Aimoku of the island of Maui during ancient Hawaii was also known by the title of mo'i of Maui.

Alternate spelling for Moai, the statues on Easter Island

MOI is the file extension for the index file accompanying the MOD video file format used on many camcorders, such as the JVC Everio, and the Panasonic D-Snap SD-card camcorders.

Mars orbit insertion, modifying the trajectory of an interplanetary spacecraft to enter a Martian orbit

Master of Illusion, a 2007 Nintendo DS game