Hi, everyone! Let's see if we can compile a giant list of any actors, characters, place names, objects, foreign language words, movie/song/book/etc titles, and so on that are the same as or hilariously similar to Vocaloids' names.
Leon:
Leon Scott Kennedy (Resident Evil game character)
Lola:
Lola (Lola Rennt/Run Lola Run movie character)
KAITO:
Kamikaze Kaitou Jeanne/Phantom Thief Jeanne (manga/anime title)
Hatsune Miku:
Mikleo (ミクリオ Mikurio) (Tales of Zestiria character)
Kagamine Rin:
凛/リン (Rin)/Lin -THE END OF CORRUPTION WORLD- (Visual kei band)
Rin' (Japanese band)
Kagamine Len:
Tao Ren (レン = Len/Ren) (Shaman King character)
Prima:
Prima Doll (Threads of Fate character)
Primadonna (Marina and the Diamonds song)
Oliver:
Oliver Twist (from the novel of the same name)
Olive Oyl (Popeye cartoon)
Oliver (cat from Oliver & Company movie)
LUMi:
Lumiere (Beauty and the Beast)
Leon Scott Kennedy (Resident Evil game character)
Lola (Lola Rennt/Run Lola Run movie character)
Kamikaze Kaitou Jeanne/Phantom Thief Jeanne (manga/anime title)
Mikleo (ミクリオ Mikurio) (Tales of Zestiria character)
凛/リン (Rin)/Lin -THE END OF CORRUPTION WORLD- (Visual kei band)
Rin' (Japanese band)
Tao Ren (レン = Len/Ren) (Shaman King character)
Prima Doll (Threads of Fate character)
Primadonna (Marina and the Diamonds song)
Oliver Twist (from the novel of the same name)
Olive Oyl (Popeye cartoon)
Oliver (cat from Oliver & Company movie)
Lumiere (Beauty and the Beast)