This is a list of the prefectures of Greece, in order of descending area. Although Mount Athos is not a prefecture, it is included here merely to complete the area of Greece, which is 131,957.413 km². The source of all numbers is the National Statistical Service of Greece 2001 census. Official tables are available at their website.
| Ranking | Prefecture | Area (km²) |
|---|---|---|
| 1 | Aetolia-Acarnania | 5460.888 |
| 2 | Larissa | 5380.943 |
| 3 | Ioannina | 4990.416 |
| 4 | Phthiotis | 4440.765 |
| 5 | Arcadia | 4418.736 |
| 6 | Evros | 4241.615 |
| 7 | Euboea | 4167.449 |
| 8 | Serres | 3967.744 |
| 9 | Thessaloniki | 3682.736 |
| 10 | Laconia | 3636.058 |
| 11 | Kozani | 3515.853 |
| 12 | Drama | 3468.293 |
| 13 | Trikala | 3383.477 |
| 14 | Achaea | 3271.507 |
| 15 | Messinia | 2990.901 |
| 16 | Boeotia | 2951.622 |
| 17 | Halkidiki | 2917.877 |
| 18 | Dodecanese | 2714.295 |
| 19 | Heraklion | 2641.220 |
| 20 | Magnesia | 2636.272 |
| 21 | Karditsa | 2635.954 |
| 22 | Elis | 2617.776 |
| 23 | Cyclades | 2571.691 |
| 24 | Rhodope | 2543.145 |
| 25 | Kilkis | 2518.880 |
| 26 | Pella | 2505.774 |
| 27 | Chania | 2375.849 |
| 28 | Grevena | 2290.856 |
| 29 | Corinthia | 2289.952 |
| 30 | Argolis | 2154.309 |
| 31 | Lesbos | 2153.727 |
| 32 | Phocis | 2120.564 |
| 33 | Kavala | 2111.705 |
| 34 | Florina | 1924.564 |
| 35 | Evrytania | 1868.911 |
| 36 | Lasithi | 1822.764 |
| 37 | Xanthi | 1792.992 |
| 38 | Kastoria | 1720.133 |
| 39 | Imathia | 1700.810 |
| 40 | Arta | 1662.210 |
| 41 | Pieria | 1516.702 |
| 42 | Thesprotia | 1514.653 |
| 43 | East Attica | 1512.993 |
| 44 | Rethymno | 1496.047 |
| 45 | Preveza | 1035.938 |
| 46 | West Attica | 1004.007 |
| 47 | Piraeus | 929.382 |
| 48 | Kefalonia and Ithaca | 904.387 |
| 49 | Chios | 904.227 |
| 50 | Samos | 777.945 |
| 51 | Corfu (Kerkyra) | 641.057 |
| 52 | Zakynthos | 405.550 |
| 53 | Athens Prefecture | 361.719 |
| 54 | Lefkada | 355.936 |
| 55 | Mount Athos | 335.637 |
See also: