Midwest FurFest (MFF) is a furry convention that takes place in Rosemont, Illinois, usually on the second weekend after Thanksgiving.

Midwest FurFest started as a furry focused part of the now defunct DucKon, a Chicago-based science fiction convention.

[6] Later, an investigation found a broken glass bottle containing a concentration of chlorine powder inside the building.

After significant backlash from other attendees on social media, Yiannopoulos was swiftly banned from the convention the following day.

[11] At the 2023 festival an attendee tweeted that the Android device they used to control their insulin pump had been interfered with by a Bluetooth Low Energy spam attack.