M/F Theresia
| Route | Avan - Norra Sunderbyn |
| IMO | ? |
| Building year | 1980 / 1999 |
| Building yard | Smögens plåt & svetsindustri AB, Sweden (#34) |
| Owner | Trafikverket Färjerederi |
| Operator | Trafikverket |
| Length | 23,04 m / 35,4 m |
| Breadth | 9 m |
| Draft | 1,3 m |
| GT | ? / 86 |
| Machinery | 1 * Volvo Penta MD 70 |
| Speed | 6 kn. |
| Number of passengers | 108 / 70 |
| Number of beds | 0 |
| Number of cars | 13 |
| Lanemetres | ? |
| Port of registry | ? |
| Flag | Sweden |
| Former names | Theresia (1996-2010) - Vägverket Färjerederiet Theresia (1992-1996) - Statens Vägverk Färja 62/317 (1980-1992) - Statens Vägverk |
| Former owners | Vägverket Färjerederi (1996-2010)
Vägverket Produktion Öst (1992-1996) Statens Vägverk (1980-1992) |
| Sister ships | - |
| Notes | - |
- M/F Theresia
Photo: Michael Koefoed-Hansen (Norra Sunderbyn, 26/7-2022)
- M/F Theresia
Photo: Michael Koefoed-Hansen (Avan, 26/7-2022)