While it is still very open to debate about which name is the hardest, one name that is considered to be one of the harder ones for non-native is the name Чебурашка (Cheburashka). Cheburashka is the name of a Russian fictional character from an older childrens movie. You may recognize him in different places in Japan, as the Japanese have grown very fond of the character once Russia lost the rights to the character to a Japanese Studio.