Upvote:1
images.google.com led to this orthodoxtimes which seems to indicate this is Saint John the Russian1
the Holy Confessor John the Russian was born in Little Russia around 1690
1 Wiki: John the Russian: many external links at bottom of page contain similar images
Many of the links are not in English. the above article has the image but doesn't specifically state who is in the picture, I'm assuming the content is about the image