| Group E | 19/09/2019 | Stade Rennais | - | Celtic FC | 1:1 |  |
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| Group E | 03/10/2019 | Celtic FC | - | CFR Cluj | 2:0 | ||||
| Group E | 24/10/2019 | Celtic FC | - | Lazio Roma | 2:1 | ||||
| Group E | 07/11/2019 | Lazio Roma | - | Celtic FC | 1:2 | |
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| Group E | 28/11/2019 | Celtic FC | - | Stade Rennais | 3:1 | |
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| Round of 32 | 20/02/2020 | FC København | - | Celtic FC | 1:1 | |
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| Round of 32 | 27/02/2020 | Celtic FC | - | FC København | 1:3 |
Scotland
