| Note: The 2003 stamp program is subject to change. |
| March 18 | Tourism 2003 -- Mamer, Esch-sur-Alzette, Differdange |
| March 18 | Great Luxembourg Women |
| March 18 | Official Journal of the European Community -- 50th Anniversary |
| March 18 | Grand Duke Jean and Grand Duchess Charlotte -- 50th Wedding Anniversary |
| May | Bridges and Viaducts of Luxembourg |
| May | Europa 2003 -- Poster Art |
| May | Athénée -- 400th Anniversary |
| September | Made in Luxembourg |
| September | Luxembourg League of Home Gardening -- 75th Anniversary |
| September | Maternal Nursing |
| December | Wildlife III (Charity Issue) |
| December | Christmas 2003 |
| December | Electrification of Luxembourg -- 75th Anniversary |
