Supernova (formerly known as Super Smash Con) is an annual Super Smash Bros. convention and tournament series held at the Dulles Expo Center in Chantilly, Virginia.

The event is held in early August and focuses on the video game series published by Nintendo along with other video games, and features tournaments for every entry in the series.

Side events have featured other platform fighters, including Rivals of Aether, Slap City, and Nickelodeon All-Star Brawl.

Supernova was established as Super Smash Con in 2015 by Justin Wykowski.

Super Smash Con added Nickelodeon All-Star Brawl as one of its tournaments in 2021.