Gagarin (Iurii)
Iurii Gagarin was a Soviet cosmonaut and the first person to enter outer space (link to his Wikipedia page below). He continues to be a source of national pride within Russia. Memes about Gagarin will often present him in disbelief that Russia is at war with Ukraine, especially because Gagarin lived his whole life in the Soviet Union, in which Ukraine and Russia were part of the same political entity.