The HEOU18AAAHL is a U18 AAA ice hockey league in Ontario. It is governed by Hockey Eastern Ontario. The league would evolve out of the Ontario East Midget Hockey League which dates back to the 2007-08 playing season. The league had been in the discussion stages since the fall of 2004. The Telus Cup eligible league would play as a stand alone league starting with the 2014-15 playing season. The league was formerly known as the HEO Midget AAA Hockey League. The league was renamed after the 2019-20 playing season following the lead of Hockey Canada when it renamed the Midget category to U18.
Most of the league's games are played at either the Bell Sensplex or the Richcraft Sensplex.
Late in 2022 Hockey Eastern Ontario would announce a "reset plan" of the AAA program in the district. As part of the reorganization the league will be cut to six teams, three in the east and three in the west. Changes were also announced for the U16AAA, U15AAA, U14AAA, U13AAA, and U12AAA programs.
As part of the re-organization all 15 league members are replaced by six newly created teams.
Teams (2023-24)[]
Note:Due to the reorganization of the league teams don't necessarily have a true home arena or community as many teams are regional and are playing home games out of multiple rinks in the Eastern Ontario region.
| Team |
| Eastern Ontario Wild AAA |
| Ontario Hockey Academy Mavericks |
| Ottawa Jr. 67's |
| Ottawa Myers Automotive |
| Ottawa Valley Titans AAA |
| Upper Canada Cyclones AAA |
Teams (2022-23 prior to re-organization)[]
Champions[]
Major Midget/U18 AAA Era[]
| Season | Playoff champion | Telus Cup Central Regional Result |
| 2025 | Ottawa Myers Automotive | TBD |
| 2024 | Ottawa Jr. 67's AAA | Bronze Medal |
| 2023 | Kemptville 73's AAA | 5th Round Robin |
| 2022 | Nepean Raiders AAA | Bronze Medal |
| 2021 | Season Cancelled | N/A |
| 2020 | Kanata Lasers AAA | Event Cancelled |
| 2019 | Pembroke Lumber Kings AAA | 5th Round Robin |
| 2018 | Hawkesbury Hawks AAA | 5th Round Robin |
| 2017 | Cornwall Colts AAA | 6th Round Robin |
| 2016 | Kanata Lasers AAA | Lost Semifinal |
| 2015 | Ottawa Senators AAA | 4th Round Robin |
OEMHL Era[]
| Season | Playoff champion | Telus Cup Central Regional Result |
| 2014 | Ottawa Senators AAA | Lost Final |
| 2013 | Ottawa 67's AAA | Won Central Regional |
| 2012 | Ottawa 67's AAA | 6th |
| 2011 | Ottawa Senators AAA | 7th place |
| 2010 | Ottawa 67's AAA | Lost Final |
| 2009 | Ottawa Valley Titans AAA | 7th place |
| 2008 | Ottawa Valley Titans AAA |
Previous Regional Representatives in Air Canada/Wrigley Cup[]
| Season | Representative | Result |
| 1983 Air Canada Cup | Ottawa West Golden Knights AAA | 10th |
| 1982 Air Canada Cup | South Ottawa Warriors | Bronze |
| 1981 Air Canada Cup | Gloucester Rangers AAA | 6th |
| 1980 Air Canada Cup | Nepean Raiders AAA | 5th |
| 1979 Air Canada Cup | Ottawa West 79's | 4th |
| 1978 Wrigley Cup | East Ottawa Voyageurs | Silver |
| 1977 Wrigley Cup | Ottawa West Golden Knights AAA | 7th |
| 1976 Wrigley Cup | Cornwall Mavericks | 7th |
| 1975 Wrigley Cup | South Ottawa Canadians | 8th |
| 1974 Wrigley Cup | Hull Kiwanis | Bronze |
Telus Cup Central Regional Champions[]
| Season | Playoff champion | Telus Cup Result |
| 2013 | Ottawa 67's AAA | Silver Medal |
| 1984 | Ottawa West Golden Knights AAA | 5th place |