See main article: Military awards and decorations of Sri Lanka.
| Sri Lanka Navy 25th Anniversary Medal | |
| Presenter: | Sri Lanka |
| Type: | Anniversary medal |
| Awarded For: | Service |
| Eligibility: | All ranks of the Sri Lanka Navy, both regular or volunteer, and civilians |
| Status: | No longer awarded |
| Description: | Suspended from a plain suspension bar |
| Clasps: | None |
| Established: | 1975 |
| Firstawarded: | 1975 |
| Lastawarded: | 1975 |
| Higher: | Republic of Sri Lanka Armed Services Medal |
| Same: | Sri Lanka Army 25th Anniversary Medal Sri Lanka Air Force 25th Anniversary Medal |
| Lower: | Sri Lanka Army 50th Anniversary Medal Sri Lanka Navy 50th Anniversary Medal Sri Lanka Air Force 50th Anniversary Medal |
The Sri Lanka Navy 25th Anniversary Medal (Sinhala: ශ්රී ලංකා නාවික හමුදා 25වන සංවත්සර පදක්කම Śrī Laṃkā nāvika hamudā visipasvana sangwathsara padakkama) was awarded to all ranks of both the regular- and volunteer forces of the Sri Lanka Navy, as well as civilians employed within the Navy who have completed a minimum of ten years of service by any time point within the 9 December 1974 to 8 December 1975 period, the year of the 25th anniversary of the Navy.[1]