V 108 Porjus was a German cargo ship that was converted into a Vorpostenboot for the Kriegsmarine during World War II.

After the war, she returned to civilian service as a cargo ship in Greece, being known by the names Alkimini, Vassilakis and finally Mona.

[1] Porjus was built in 1937 by Lübecker Flenderwerke, Lübeck, Germany for the Afrikanische Frucht-Compagnie A.G., Hamburg.

[2] Porjus was operated under the management of Reederei F. Laeisz GmbH.

Her port of registry was Hamburg and the Code Letters DJTM were allocated.