The 2017–18 ECHL season is the 30th season of the ECHL. The regular season ran from October 13, 2017, to April 8, 2018 with the Kelly Cup playoffs to follow. Twenty-seven teams in 21 states and one Canadian province each played a 72-game schedule.
The league was shocked by the collapse of Tulsa Oilers head coach Rob Murray during a November 17, 2017 game against the Quad City Mallards. The game was suspended and will be completed at a later date. He was released from the hospital the following day.
A December 15th game between the Manchester Monarchs and the Greenville Swamp Rabbits was suspended with 5:45 remaining in the 3rd period due to issues with the ice surface. The game was completed the next night with Greenville winning 4-3.
The Allen Americans plan to rebrand to make the locale of their name be more inclusive of the Dallas-Fort Worth area.
The Elmira Jackals had been losing money, suffering from ownership issues since 2012, and county operated since 2016. The county agency operating the team and arena had an agreement to sell the arena to a new owner, but the owner did not want the Jackals and the team ceased operations.
With the addition of another ECHL team in the South, the Jacksonville IceMen, the Cincinnati Cyclones returned to the Western Conference and Central Division after one season in the Eastern Conference. The Worcester Railers took the North Division spot vacated by the folded Elmira Jackals. The Western Conference divisions were reshuffled with the Kansas City Mavericks moving to the Central while the Tulsa Oilers and Wichita Thunder joined the Mountain Division.
The annual ECHL Board of Governors meeting were held in Las Vegas, Nevada, on June 12 and 13, 2017. The ECHL Board of Governors re-elected Cincinnati Cyclones' president Ray Harris as chairman for a third season. The Board also approved of the the transfer of the Alaska Aces franchise to Portland, Maine, for the 2018–19 season as well as the 2017–18 alignment.
At the end of the regular season the top four teams in each division qualifies for the 2018 Kelly Cup playoffs and be seeded one through four based on highest point total earned in the season. Then the first two rounds of the playoffs are held within the division with the first seed facing the fourth seed and the second seed facing the third. The division champions then play each other in a conference championship. The Kelly Cup finals pits the Eastern Conference champion against the Western Conference champion. All four rounds are a best-of-seven format.