| month | day | visitor | score | home | score |
|---|
| November | 3, 2023 | Raptors | 112 | Celtics | 109 |
| November | 4, 2023 | Celtics | 91 | Knicks | 96 |
| November | 5, 2023 | Celtics | 91 | Grizzlies | 106 |
| November | 8, 2023 | Bucks | 94 | Celtics | 83 |
| November | 11, 2023 | Heat | 99 | Celtics | 93 |
| November | 12, 2023 | Knicks | 101 | Celtics | 89 |
| November | 14, 2023 | Celtics | 104 | Lakers | 120 |
| November | 15, 2023 | Celtics | 101 | Clippers | 119 |
| November | 16, 2023 | Celtics | 96 | Kings | 98 |
| November | 18, 2023 | Knicks | 103 | Celtics | 95 |
| November | 19, 2023 | Nets | 86 | Celtics | 101 |
| November | 20, 2023 | Celtics | 95 | Nets | 103 |
| November | 21, 2023 | Lakers | 108 | Celtics | 99 |
| November | 22, 2023 | Bulls | 99 | Celtics | 95 |
| November | 24, 2023 | Kings | 68 | Celtics | 91 |
| November | 28, 2023 | Celtics | 77 | Pelicans | 113 |
| December | 1, 2023 | Bulls | 125 | Celtics | 110 |
| December | 4, 2023 | Celtics | 112 | Pacers | 125 |
| December | 6, 2023 | Celtics | 102 | Spurs | 84 |
| December | 9, 2023 | Heat | 125 | Celtics | 123 |
| December | 12, 2023 | Celtics | 107 | Grizzlies | 100 |
| December | 13, 2023 | Nets | 91 | Celtics | 112 |
| December | 17, 2023 | Bucks | 90 | Celtics | 97 |
| December | 18, 2023 | Celtics | 110 | Grizzlies | 112 |
| December | 20, 2023 | Nuggets | 96 | Celtics | 108 |
| December | 23, 2023 | Celtics | 96 | Bucks | 89 |
| December | 25, 2023 | Celtics | 113 | Raptors | 106 |
| December | 27, 2023 | Sonics | 104 | Celtics | 108 |
| December | 31, 2023 | Celtics | 114 | Raptors | 94 |
| January | 3, 2024 | Grizzlies | 105 | Celtics | 99 |
| January | 6, 2024 | Bucks | 94 | Celtics | 121 |
| January | 7, 2024 | Grizzlies | 94 | Celtics | 112 |
| January | 8, 2024 | Celtics | 103 | Blazers | 94 |
| January | 10, 2024 | Celtics | 96 | Heat | 109 |
| January | 11, 2024 | Celtics | 112 | Bucks | 99 |
| January | 12, 2024 | Celtics | 100 | Bulls | 122 |
| January | 13, 2024 | Spurs | 110 | Celtics | 94 |
| January | 14, 2024 | Warriors | 122 | Celtics | 109 |
| January | 15, 2024 | Hawks | 82 | Celtics | 98 |
| January | 16, 2024 | Celtics | 118 | Suns | 117 |
| January | 20, 2024 | Grizzlies | 92 | Celtics | 102 |
| January | 22, 2024 | Clippers | 89 | Celtics | 123 |
| January | 23, 2024 | Celtics | 113 | Hawks | 74 |
| January | 24, 2024 | Celtics | 132 | Sonics | 104 |
| January | 27, 2024 | Pelicans | 95 | Celtics | 119 |
| January | 28, 2024 | Celtics | 116 | Bulls | 113 |
| February | 2, 2024 | Hawks | | Celtics | |
| February | 9, 2024 | Rockets | | Celtics | |
| February | 10, 2024 | 76ers | | Celtics | |
| February | 11, 2024 | Celtics | | Pacers | |
| February | 12, 2024 | Suns | | Celtics | |
| February | 13, 2024 | Celtics | | Bulls | |
| February | 14, 2024 | Celtics | | Mavericks | |
| February | 21, 2024 | Celtics | | Nuggets | |
| February | 23, 2024 | Bulls | | Celtics | |
| February | 25, 2024 | Wolves | | Celtics | |
| February | 26, 2024 | Celtics | | Hawks | |
| February | 27, 2024 | Jazz | | Celtics | |
| March | 3, 2024 | Celtics | | Nets | |
| March | 4, 2024 | Celtics | | Warriors | |
| March | 5, 2024 | Celtics | | Rockets | |
| March | 6, 2024 | Celtics | | Pacers | |
| March | 7, 2024 | Celtics | | 76ers | |
| March | 11, 2024 | Celtics | | Raptors | |
| March | 17, 2024 | Celtics | | Wolves | |
| March | 18, 2024 | 76ers | | Celtics | |
| March | 20, 2024 | Pacers | | Celtics | |
| March | 22, 2024 | Celtics | | Heat | |
| March | 23, 2024 | Raptors | | Celtics | |
| March | 28, 2024 | Hawks | | Celtics | |
| March | 31, 2024 | Celtics | | Bucks | |
| April | 1, 2024 | Celtics | | 76ers | |
| April | 3, 2024 | Celtics | | Knicks | |
| April | 6, 2024 | Raptors | | Celtics | |
| April | 9, 2024 | Mavericks | | Celtics | |
| April | 10, 2024 | Pacers | | Celtics | |
| April | 11, 2024 | Celtics | | Pelicans | |
| April | 14, 2024 | Pacers | | Celtics | |
| April | 16, 2024 | Pelicans | | Celtics | |
| April | 17, 2024 | Celtics | | Jazz | |
| April | 19, 2024 | Blazers | | Celtics | |
| April | 21, 2024 | Celtics | | Hawks | |