Simos Stogiannou Ioannidis (Greek: Σίμος Στογιάννου Ιωαννίδης) was a Slavophone Greek revolutionary of the Macedonian Struggle known as well by the nom de guerre Armenskiotis.

Ioannidis was born in the 1880s in Armenskon of Florina, then Ottoman Empire (now Alona, Greece).

[1][2] He set up his own armed group in 1906 cooperating with Pavlos Rakovitis, acting in the region of Florina.

[1] He participated as a volunteer in both Balkan Wars, and notably in the battle which led to the extermination of Vasil Chekalarov.

[1][2] In 1957, the village of Motesnica in Florina was renamed to Simos Ioannidis in his honour.