| Matches: Year By Year | Pictures: Year By Year |
| Celtic Games Played:- | 2019 |
| Other Match Pages:- | 2018 | 2020 |
| Decade of Matches:- | 2011-2020 |
| Picture Pages:- | 2018-19 | 2019-20 |
| League Tables:- | 2018-19 | 2019-20 |
| Date | Competition | Home Team | Score | Score | Away Team | Report | Pictures | Notes |
| JAN | ||||||||
| 19 | Scottish Cup | Celtic | 3 | 0 | Airdrie | Report | Pictures | KO: 17:15; Fourth Round (back after winter break) |
| 23 | Scottish Premiership | Celtic | 4 | 0 | St Mirren | Report | Pictures | KO: 19:45 |
| 26 | Scottish Premiership | Celtic | 3 | 0 | Hamilton | Report | Pictures | KO: 15:00 |
| 30 | Scottish Premiership | Celtic | 2 | 0 | St Johnstone | Report | Pictures | KO: 19:45 |
| FEB | ||||||||
| 3 | Scottish Premiership | St Johnstone | 0 | 2 | Celtic | Report | Pictures | KO:12:30 |
| 6 | Scottish Premiership | Celtic | 2 | 0 | Hibernian | Report | Pictures | KO:19:45 |
| 10 | Scottish Cup | Celtic | 5 | 0 | St Johnstone | Report | Pictures | KO: 13:30, Fifth Round |
| 14 | UEFA Cup | Celtic | 0 | 2 | Valencia | Report | Pictures | KO: 20:00, 1st leg round of 32 |
| 17 | Scottish Premiership | Kilmarnock | 0 | 1 | Celtic | Report | Pictures | KO:16:00 |
| 21 | UEFA Cup | Valencia | 1 | 0 | Celtic | Report | Pictures | KO:17:55, 2nd leg round of 32 (agg: 0-3, out of Europe) |
| 24 | Scottish Premiership | Celtic | 4 | 1 | Motherwell | Report | Pictures | KO:15:00 |
| 27 | Scottish Premiership | Hearts | 1 | 2 | Celtic | Report | Pictures | KO:19:45 Brendan Rodgers left Celtic manager’s role; Neil Lennon brought in as interim manager |
| MAR | ||||||||
| 2 | Scottish Cup | Hibernian | 0 | 2 | Celtic | Report | Pictures | KO: 17:15; Quarter-finals |
| 9 | Scottish Premiership | Celtic | 0 | 0 | Aberdeen | Report | Pictures | KO: 15:00 |
| 17 | Scottish Premiership | Dundee | 0 | 1 | Celtic | Report | Pictures | KO: 12:30 |
| 31 | Scottish Premiership | Celtic | 2 | 1 | Rangers | Report | Pictures | KO: 12:00 |
| APR | ||||||||
| 3 | Scottish Premiership | St Mirren | 0 | 2 | Celtic | Report | Pictures | KO:19:45 |
| 6 | Scottish Premiership | Celtic | 0 | 0 | Livingston | Report | Pictures | KO:15:00 |
| 14 | Scottish Cup | Celtic | 3 | 0 | Aberdeen | Report | Pictures | KO:14:00; Semi-final |
| 21 | Scottish Premiership | Hibernian | 0 | 0 | Celtic | Report | Pictures | KO: 12:30 |
| 27 | Scottish Premiership | Celtic | 1 | 0 | Kilmarnock | Report | Pictures | KO:12:30; Billy McNeill passed away on Monday past, RIP |
| MAY | ||||||||
| 4 | Scottish Premiership | Aberdeen | 0 | 3 | Celtic | Report | Pictures | KO:12:30; Stevie Chalmers passed away on Monday past, RIP Celtic win the league |
| 12 | Scottish Premiership | TheRangers | 2 | 0 | Celtic | Report | Pictures | KO:12:00 |
| 19 | Scottish Premiership | Celtic | 2 | 1 | Hearts | Report | Pictures | KO:15:00 |
| 25 | Scottish Cup | Celtic | 2 | 1 | Hearts | Report | Pictures | KO: 15:00; Final Celtic win the Scottish Cup Celtic win the Treble Celtic make history: Three Trebles in a row Harry Hood passed away day after, RIP |
- Season Review
- Champions League 2018-19
- UEFA Cup/Europa League 2018-19
- Statistics 2018-19
- League Table 2018-19
- KDS Player of the Year 2018-19
- Scottish Cup 2018-19
- League Cup 2018-19
- Team Line-Up Pictures 2018-19
| Date | Competition | Home Team | Score | Score | Away Team | Report | Pictures | Notes |
| JUN | ||||||||
| 26 | Friendly | SK Pinkafield | 1 | 6 | Celtic | Report | Pictures | KO:17:30 |
| 29 | Friendly | Wiener SC | 1 | 2 | Celtic | Report | Pictures | KO:17:00 |
| JUL | ||||||||
| 2 | Friendly | FC St Gallen | 0 | 0 | Celtic | Report | Pictures | KO:18:30; First ever match for Celtic with VAR used |
| 9 | European Cup | FK Sarajevo | 1 | 3 | Celtic | Report | Pictures | KO:19:45, 1st leg, 1st Qualifying Round |
| 13 | Friendly | Celtic | 0 | 0 | Stade Rennais | Report | Pictures | KO:15:00 |
| 17 | European Cup | Celtic | 2 | 1 | FK Sarajevo | Report | Pictures | KO:19:45, 2nd leg, 1st Qualifying Round (agg 5-2) |
| 24 | European Cup | Celtic | 5 | 0 | Kalju | Report | Pictures | KO:19:45; 1st leg |
| 30 | European Cup | Kalju | 0 | 2 | Celtic | Report | Pictures | KO:18:00; 2nd leg, (agg: 7-0) |
| AUG | ||||||||
| 3 | Scottish Premiership | Celtic | 7 | 0 | St Johnstone | Report | Pictures | KO:15:00 |
| 7 | European Cup | CFR Cluj | 1 | 1 | Celtic | Report | Pictures | KO:19:00 |
| 10 | Scottish Premiership | Motherwell | 2 | 5 | Celtic | Report | Pictures | KO:12:00 |
| 13 | European Cup | Celtic | 3 | 4 | CFR Cluj | Report | Pictures | KO: 2nd Leg (agg: 4-5), out of European Cup |
| 17 | League Cup | Celtic | 2 | 1 | Dunfermline | Report | Pictures | KO:15:00 last 16 round (1-1 at full-time, 2-1 after extra-time) |
| 22 | UEFA Cup | Celtic | 2 | 0 | AIK Stockholm | Report | Pictures | KO: 19:45, play-offs (1st leg) |
| 24 | Scottish Premiership | Celtic | 3 | 1 | Hearts | Report | Pictures | KO:15:00 |
| 29 | UEFA | AIK Stockholm | 1 | 4 | Celtic | Report | Pictures | KO: 18:00, play-offs (2nd leg) (6-1 Agg) |
| SEP | ||||||||
| 1 | Scottish Premiership | TheRangers | 0 | 2 | Celtic | Report | Pictures | KO:12:00 |
| 14 | Scottish Premiership | Hamilton | 0 | 1 | Celtic | Report | Pictures | KO:12:00 |
| 19 | UEFA Cup | Stade Rennais | 1 | 1 | Celtic | Report | Pictures | KO:17:55 (match 1) |
| 22 | Scottish Premiership | Celtic | 3 | 1 | Kilmarnock | Report | Pictures | KO:15:00 |
| 25 | Scottish Premiership | Celtic | 5 | 0 | Partick Thistle | Report | Pictures | KO:19:45 |
| 28 | Scottish Premiership | Hibernian | 1 | 1 | Celtic | Report | Pictures | KO:12:30 |
| OCT | ||||||||
| 3 | UEFA Cup | Celtic | 2 | 0 | CFR Cluj | Report | Pictures | KO:20:00 (match 2) |
| 6 | Scottish Premiership | Livingston | 2 | 0 | Celtic | Report | Pictures | KO:12:00 |
| 19 | Scottish Premiership | Celtic | 6 | 0 | Ross County | Report | Pictures | KO:15:00 |
| 24 | UEFA Cup | Celtic | 2 | 1 | SS Lazio | Report | Pictures | KO: 20:00 (match 3) |
| 27 | Scottish Premiership | Aberdeen | 0 | 4 | Celtic | Report | Pictures | KO:12:15 |
| 30 | Scottish Premiership | Celtic | 2 | 0 | St Mirren | Report | Pictures | KO:19:45 |
| NOV | ||||||||
| 2 | League Cup | Hibernian | 2 | 5 | Celtic | Report | Pictures | KO:17:30 (semi-final) |
| 7 | UEFA Cup | Lazio | 1 | 2 | Celtic | Report | Pictures | KO:17:55 (match 4) |
| 10 | Scottish Premiership | Celtic | 2 | 0 | Motherwell | Report | Pictures | KO:15:00 |
| 23 | Scottish Premiership | Celtic | 4 | 0 | Livingston | Report | Pictures | KO:15:00 |
| 28 | UEFA Cup | Celtic | 3 | 1 | Stade Rennais | Report | Pictures | KO:20:00 (match 5) |
| DEC | ||||||||
| 1 | Scottish Premiership | Ross County | 1 | 4 | Celtic | Report | Pictures | KO:12:00 |
| 4 | Scottish Premiership | Celtic | 2 | 1 | Hamilton | Report | Pictures | KO:19:45 |
| 8 | League Cup | TheRangers | 0 | 1 | Celtic | Report | Pictures | KO:15:00; Final Celtic win the League Cup |
| 12 | UEFA Cup | CFR Cluj | 2 | 0 | Celtic | Report | Pictures | KO:17:55 |
| 15 | Scottish Premiership | Celtic | 2 | 0 | Hibernian | Report | Pictures | KO:15:00 |
| 18 | Scottish Premiership | Hearts | 0 | 2 | Celtic | Report | Pictures | KO:19:45 |
| 21 | Scottish Premiership | Celtic | 2 | 1 | Aberdeen | Report | Pictures | KO:15:00 |
| 26 | Scottish Premiership | St Mirren | 1 | 2 | Celtic | Report | Pictures | KO: 15:00 |
| 29 | Scottish Premiership | Celtic | 1 | 2 | Rangers | Report | Pictures | KO: 12:30 |