Panellinios B.C. in international competitions is the history and statistics of Panellinios B.C. in FIBA Europe and Euroleague Basketball Company European-wide club basketball competitions.
| width=10% | Record | width=10% | Round | width=20% | Opponent club | width=10% | width=10% | width=10% | width=10% | width=10% | |||||
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| 1958 FIBA European Champions Cup 1st–tier | |||||||||||||||
| 0–2 | 2n round | Steaua București | 60–63 (h) | 72–75 (a) | |||||||||||
| 1974–75 FIBA Korać Cup 3rd–tier | |||||||||||||||
| 1–1 | 2nd round |  Sunair Oostende | 70–68 (h) | 65–79 (a) | |||||||||||
| 1975–76 FIBA Korać Cup 3rd–tier | |||||||||||||||
| 1–1 | 2nd round | Jugoplastika | 78–63 (h) | 61–105 (a) | |||||||||||
| 1977–78 FIBA Korać Cup 3rd–tier | |||||||||||||||
| 1–1 | 1st round |  Scavolini Pesaro | 77–67 (h) | 47–92 (a) | |||||||||||
| 1978–79 FIBA Korać Cup 3rd–tier | |||||||||||||||
| 1–1 | 1st round | Verviers-Pepinster | 58–53 (h) | 54–81 (a) | |||||||||||
| 1980–81 FIBA Korać Cup 3rd–tier | |||||||||||||||
| 0–2 | 1st round |  Hapoel Haifa | 63–102 (a) | 77–96 (h) | |||||||||||
| 1987–88 FIBA European Cup Winner's Cup 2nd–tier | |||||||||||||||
| 1–1 | 1st round | Porto | 84–82 (h) | 61–77 (a) | |||||||||||
| 2007–08 ULEB Cup 2nd–tier | |||||||||||||||
| 1–9 | Regular season | Telindus Oostende | 84–77 (h) | 71–83 (a) | |||||||||||
 Crvena zvezda | 69–79 (a) | 81–83 (h) | |||||||||||||
 ČEZ Nymburk | 65–75 (a) | 77–86 (h) | |||||||||||||
 Dynamo Moscow | 76–83 (h) | 73–107 (a) | |||||||||||||
| Beghelli Bologna | 59–83 (a) | 67–85 (h) | |||||||||||||
| 2008–09 Eurocup 2nd–tier | |||||||||||||||
| 7–9 | Qualifying round 1 | Telekom Baskets Bonn | 69–54 (h) | 85–70 (a) | |||||||||||
| Qualifying round 2 |  Kyiv | 96–69 (h) | 72–96 (a) | ||||||||||||
| Regular season | Aris | 69–71 (h) | 77–72 (a) | ||||||||||||
 Türk Telekom | 64–70 (a) | 82–74 (h) | |||||||||||||
| Bnei HaSharon | 85–70 (h) | 76–78 (a) | |||||||||||||
| Top 16 | Dynamo Moscow | 84–91 (a) | 72–77 (h) | ||||||||||||
| Maroussi Costa Coffee | 59–71 (h) | 85–83 (a) | |||||||||||||
| Khimki | 73–89 (h) | 94–101 (a) | |||||||||||||
| 2009–10 Eurocup 2nd–tier | |||||||||||||||
| 10–8 | Qualifying round | VEF Rīga | 94–79 (a) | 74–79 (h) | |||||||||||
| Regular season |  Gran Canaria 2014 | 89–60 (h) | 51–73 (a) | ||||||||||||
 Nancy | 81–72 (a) | 77–64 (h) | |||||||||||||
 Turów Zgorzelec | 83–65 (h) | 76–81 (a) | |||||||||||||
| Top 16 | Brose Baskets | 70–62 (h) | 81–84 (a) | ||||||||||||
| Bizkaia Bilbao | 61–81 (a) | 77–70 (h) | |||||||||||||
| Benetton Treviso | 88–79 (h) | 85–81 (a) | |||||||||||||
| QF | Gran Canaria 2014 | 81–70 (h) | 68–75 (a) | ||||||||||||
| SF | Power Electronics Valencia | 80–92 April 17, Fernando Buesa Arena, Vitoria-Gasteiz | |||||||||||||
| 3rd place game | Bizkaia Bilbao | 67–76 April 18, Fernando Buesa Arena, Vitoria-Gasteiz | |||||||||||||
| 2010–11 Eurocup 2nd–tier | |||||||||||||||
| 5–7 | Regular season | Bennet Cantù | 57–72 (a) | 59–54 (h) | |||||||||||
| GasTerra Flames | 68–51 (h) | 63–57 (a) | |||||||||||||
| Galatasaray Café Crown | 53–79 (a) | 66–62 (h) | |||||||||||||
| Top 16 | Cajasol | 82–87 (h) | 71–84 (a) | ||||||||||||
| Alba Berlin | 65–68 (a) | 86–73 (h) | |||||||||||||
| Benetton Bwin Treviso | 75–83 (h) | 72–82 (a) | |||||||||||||