This a compiled list of the Vocaloids that I have known so far. If there any Vocaloids that I have missed, please do tell me by POSTING A POST ON MY WALL.
(*cough* I need to listen to more Vocaloids *cough*)

VOCALOID ONE
Leon
Lola
Miriam
Meiko
Kaito

VOCALOID TWO

Sweet ANN
Hatsune Miku
Kagamine Rin
Kagamine Len
Prima
Kamui Gakupo
Megurine Luka
Megpoid GUMI
SONiKA
SF-A2 Miki
Kaai Yuki
Hiyama Kiyoteru
BIG AL
Tonio
Lily
VY1
Ryuto
Nekomura Iroha
Utatane Piko
VY2

VOCALOID THREE

Mew
SeeU
Tone Rion
OLIVER
CUL
Yuzuki Yuzari
Bruno
Clara
IA
Aoki Lapis
Luo Tianyi
galaco
MAYU
AVANNA
Merli
ZOLA PROJECT
Yan He

I guess that is all that I know (I have not even listened to 25% of this list)!! Tell me if I missed out any Vocaloid ON MY WALL. Say its name and if its Vocaloid One, Two or Three.