| August 2025Aug 03 |  Premiership | Celtic 1–0 ST Mirren1st Phase - 1 | W |
| Aug 10 | Premiership | Aberdeen 0–2Celtic1st Phase - 2 | W |
| Aug 15 |  Scottish League Cup | Celtic4–1 Falkirk2nd Round | W |
| Aug 20 |  Champions League | Celtic0–0 Kairat AlmatyPlay-offs | D |
| Aug 23 | Premiership | Celtic3–0 Livingston1st Phase - 3 | W |
| Aug 26 | Champions League | Kairat Almaty0–0CelticPlay-offs | D |
| Aug 31 | Premiership | Rangers 0–0Celtic1st Phase - 4 | D |
| September 2025Sep 14 | Premiership | Kilmarnock 1–2Celtic1st Phase - 5 | W |
| Sep 21 | Scottish League Cup | Partick 0–4CelticQuarter-finals | W |
| Sep 24 |  Europa League | FK Crvena Zvezda 1–1CelticLeague Stage - 1 | D |
| Sep 27 | Premiership | Celtic0–0 Hibernian1st Phase - 6 | D |
| October 2025Oct 02 | Europa League | Celtic0–2 SC BragaLeague Stage - 2 | L |
| Oct 05 | Premiership | Celtic3–2 Motherwell1st Phase - 7 | W |
| Oct 19 | Premiership | Dundee 2–0Celtic1st Phase - 8 | L |
| Oct 23 | Europa League | Celtic2–1 Sturm GrazLeague Stage - 3 | W |
| Oct 26 | Premiership | Heart Of Midlothian 3–1Celtic1st Phase - 9 | L |
| Oct 29 | Premiership | Celtic4–0Falkirk1st Phase - 10 | W |
| November 2025Nov 02 | Scottish League Cup | Celtic3–1RangersSemi-finals | W |
| Nov 06 | Europa League | FC Midtjylland 3–1CelticLeague Stage - 4 | L |
| Nov 09 | Premiership | Celtic4–0Kilmarnock1st Phase - 12 | W |
| Nov 22 | Premiership | ST Mirren0–1Celtic1st Phase - 13 | W |
| Nov 27 | Europa League | Feyenoord 1–3CelticLeague Stage - 5 | W |
| Nov 30 | Premiership | Hibernian1–2Celtic1st Phase - 14 | W |
| December 2025Dec 03 | Premiership | Celtic1–0Dundee1st Phase - 15 | W |
| Dec 07 | Premiership | Celtic1–2Heart Of Midlothian1st Phase - 16 | L |
| Dec 11 | Europa League | Celtic0–3 AS RomaLeague Stage - 6 | L |
| Dec 14 | Scottish League Cup | ST Mirren3–1CelticFinal | L |
| Dec 17 | Premiership | Dundee Utd 2–1Celtic1st Phase - 11 | L |
| Dec 21 | Premiership | Celtic3–1Aberdeen1st Phase - 18 | W |
| Dec 27 | Premiership | Livingston2–4Celtic1st Phase - 19 | W |
| Dec 30 | Premiership | Motherwell2–0Celtic1st Phase - 20 | L |
| January 2026Jan 03 | Premiership | Celtic1–3Rangers1st Phase - 21 | L |
| Jan 10 | Premiership | Celtic4–0Dundee Utd1st Phase - 22 | W |
| Jan 14 | Premiership | Falkirk0–1Celtic1st Phase - 17 | W |
| Jan 18 |  Scottish Cup | Auchinleck Talbot 0–2CelticRound of 32 | W |
| Jan 22 | Europa League | Bologna 2–2CelticLeague Stage - 7 | D |
| Jan 25 | Premiership | Heart Of Midlothian2–2Celtic1st Phase - 23 | D |
| Jan 29 | Europa League | Celtic4–2 UtrechtLeague Stage - 8 | W |
| February 2026Feb 01 | Premiership | Celtic2–0Falkirk1st Phase - 24 | W |
| Feb 07 | Scottish Cup | Celtic2–1DundeeRound of 16 | W |
| Feb 11 | Premiership | Celtic2–1Livingston1st Phase - 26 | W |
| Feb 15 | Premiership | Kilmarnock2–3Celtic1st Phase - 27 | W |
| Feb 19 | Europa League | Celtic1–4 VfB StuttgartRound of 32 | L |
| Feb 22 | Premiership | Celtic1–2Hibernian1st Phase - 28 | L |
| Feb 26 | Europa League | VfB Stuttgart0–1CelticRound of 32 | W |
| March 2026Mar 01 | Premiership | Rangers2–2Celtic1st Phase - 29 | D |
| Mar 04 | Premiership | Aberdeen1–2Celtic1st Phase - 25 | W |
| Mar 08 | Scottish Cup | Rangers0–0CelticQuarter-finals | D |
| Mar 14 | Premiership | Celtic3–1Motherwell1st Phase - 30 | W |
| Mar 22 | Premiership | Dundee Utd2–0Celtic1st Phase - 31 | L |
| April 2026Apr 05 | Premiership | Dundee1–2Celtic1st Phase - 32 | W |
| Apr 11 | Premiership | Celtic1–0ST Mirren1st Phase - 33 | W |
| Apr 19 | Scottish Cup | Celtic6–2ST MirrenSemi-finals | W |
| Apr 25 | Premiership | Celtic3–1FalkirkChampionship Group - 34 | W |
| May 2026May 03 | Premiership | Hibernian1–2CelticChampionship Group - 35 | W |
| May 10 | Premiership | Celtic3–1RangersChampionship Group - 36 | W |
| May 13 | Premiership | Motherwell2–3CelticChampionship Group - 37 | W |
| May 16 | Premiership | Celtic3–1Heart Of MidlothianChampionship Group - 38 | W |
| May 23 | Scottish Cup | Celtic3–1 DunfermlineFinal | W |
