The 2017 Evolution Championship Series was a fighting game event held in Las Vegas on July 14–16 that was part of the long-running Evolution Championship Series. The event offered tournaments for various fighting games, such as Street Fighter V, Tekken 7, and Injustice 2. Over 10,000 people registered for the event with Tekken 7 receiving double the number of players from the previous year.

The Evolution Championship Series, commonly known as Evo, is an American annual esports event that focuses exclusively on fighting games. The tournaments are completely open and use the double elimination format. As with Super Battle Opera, contestants travel from all over the world to participate, most notably from Japan. The first Evolution was originally held as a Super Street Fighter II Turbo and Street Fighter Alpha 2 tournament called the Battle by the Bay. It changed its name to Evo in 2002. Every successive tournament has seen an increase of attendees. It has been held at various venues across the Las Vegas Valley since 2005. As of 2021, the event is jointly owned by Sony Interactive Entertainment and the Endeavor esports venture RTS.