M/F Finnsirius
| Route | Kapellskär - (Långnäs) - Naantali (Nådendal) (From July 2023) |
| IMO | ? |
| Building year | 2023 |
| Building yard | CMI Jinling Weihai Shipyard, China (#W0276) |
| Owner | ? |
| Operator | FinnLink |
| Length | 229,5 m |
| Breadth | 33,6 m |
| Draft | ? |
| GT | ? |
| Machinery | Wärtsilä 46F |
| Speed | ? kn. |
| Number of passengers | 1.212 |
| Number of beds | (323 cabins) |
| Number of cars | ? |
| Lanemetres | 5.100 |
| Port of registry | ? |
| Flag | Finland |
| Former names | |
| Former owners | - |
| Sister ships | - |
| Notes | - |
Drawing: Knud E. Hansen