| Club: | Greenock Morton |
| Season: | 2017–18 |
| Manager: | Ray McKinnon (until 30 August) Jonatan Johansson (from 6 September) |
| Chairman: | Douglas Rae |
| Stadium: | Cappielow Park |
| League: | Championship |
| League Result: | Fifth place |
| Cup1: | League Cup |
| Cup1 Result: | Group stage |
| Cup2: | Challenge Cup |
| Cup2 Result: | First round |
| Cup3: | Scottish Cup |
| Cup3 Result: | Fourth round |
| League Topscorer: | Robert McHugh &<br>Greg Kiltie (6) |
| Season Topscorer: | Robert McHugh (10) |
| Highest Attendance: | 4,661 v St Mirren, Championship, 12 August 2017 |
| Lowest Attendance: | 1,036 v Livingston, Challenge Cup, 15 August 2017 |
| Average Attendance: | 1,985 |
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| Prevseason: | 2017–18 |
| Nextseason: | 2019–20 |
Season 2018–19 saw Greenock Morton compete in the Scottish Championship the second tier of Scottish football, having finished seventh in 2017–18. Morton also competed in the Challenge Cup, Scottish League Cup and the Scottish Cup.
See main article: 2018–19 Scottish Championship.
Results
See main article: 2018–19 Scottish Challenge Cup.
See main article: 2018–19 Scottish Cup.
[1] |-|colspan="12"|Players who left the club during the 2018–19 season|-|}