2018–19 OHL season

The 2018–19 OHL season was the 39th season of the Ontario Hockey League, in which twenty teams played 68 games each according to the regular season schedule, from September 19, 2018 to March 17, 2019.

The Guelph Storm won the J. Ross Robertson Cup as they defeated the Ottawa 67's in six games to represent the Ontario Hockey League in the 2019 Memorial Cup, which was hosted by the Halifax Mooseheads of the QMJHL at the Scotiabank Centre in Halifax, Nova Scotia from May 17–26, 2019.

Final standings
Note: DIV = Division; GP = Games played; W = Wins; L = Losses; OTL = Overtime losses; SL = Shootout losses; GF = Goals for; GA = Goals against; PTS = Points; x = clinched playoff berth; y = clinched division title; z = clinched conference title

Scoring leaders
Note: GP = Games played; G = Goals; A = Assists; Pts = Points; PIM = Penalty minutes

Leading goaltenders
Note: GP = Games played; Mins = Minutes played; W = Wins; L = Losses: OTL = Overtime losses; SL = Shootout losses; GA = Goals Allowed; SO = Shutouts; GAA = Goals against average

Playoff scoring leaders
Note: GP = Games played; G = Goals; A = Assists; Pts = Points; PIM = Penalty minutes

Playoff leading goaltenders
Note: GP = Games played; Mins = Minutes played; W = Wins; L = Losses: OTL = Overtime losses; SL = Shootout losses; GA = Goals Allowed; SO = Shutouts; GAA = Goals against average

All-Star teams
The OHL All-Star Teams were selected by the OHL's General Managers.

First team

 * Morgan Frost, Centre, Sault Ste. Marie Greyhounds
 * Jason Robertson, Left Wing, Kingston Frontenacs/Niagara IceDogs
 * Justin Brazeau, Right Wing, North Bay Battalion
 * Evan Bouchard, Defence, London Knights
 * Mac Hollowell, Defence, Sault Ste. Marie Greyhounds
 * Ukko-Pekka Luukkonen, Goaltender, Sudbury Wolves
 * Andre Tourigny, Coach, Ottawa 67's

Second team

 * Kevin Hancock, Centre, Owen Sound Attack/London Knights
 * Arthur Kaliyev, Left Wing, Hamilton Bulldogs
 * Tye Felhaber, Right Wing, Ottawa 67's
 * Bode Wilde, Defence, Saginaw Spirit
 * Adam Boqvist, Defence, London Knights
 * Kyle Keyser, Goaltender, Oshawa Generals
 * Cory Stillman, Coach, Sudbury Wolves

Third team

 * Nick Suzuki, Centre, Owen Sound Attack/Guelph Storm
 * Isaac Ratcliffe, Left Wing, Guelph Storm
 * Nate Schnarr, Right Wing, Guelph Storm
 * Dmitri Samorukov, Defence, Guelph Storm
 * Thomas Harley, Defence, Mississauga Steelheads
 * Ivan Prosvetov, Goaltender, Saginaw Spirit
 * Dale Hunter, Coach, London Knights

2019 OHL Priority Selection
On April 6, 2019, the OHL conducted the 2019 Ontario Hockey League Priority Selection. The Kingston Frontenacs held the first overall pick in the draft, and selected Shane Wright from the Don Mills Flyers of the GTHL. Wright was awarded the Jack Ferguson Award, awarded to the top pick in the draft.

Below are the players who were selected in the first round of the 2019 Ontario Hockey League Priority Selection.

2019 NHL Entry Draft
On June 21–22, 2019, the National Hockey League conducted the 2019 NHL Entry Draft held at Rogers Arena in Vancouver, British Columbia. In total, 25 players from the Ontario Hockey League were selected in the draft. Thomas Harley of the Mississauga Steelheads was the first player from the OHL to be selected, as he was taken with the 18th overall pick by the Dallas Stars.

Below are the players selected from OHL teams at the NHL Entry Draft.

2019 CHL Import Draft
On June 27, 2019, the Canadian Hockey League conducted the 2019 CHL Import Draft, in which teams in all three CHL leagues participate in. The Kingston Frontenacs held the first pick in the draft by a team in the OHL, and selected Martin Chromiak from Slovakia with their selection.

Below are the players who were selected in the first round by Ontario Hockey League teams in the 2019 CHL Import Draft.