the missing godparent

[fawkes970]

No: HPFGUIDX 88269

i was thinking today about the hp3 movie premiere (US) and that i 
would be going as sirius. so as i thought about it i was thinking 
maybe since i was harry's godfather one of my other friends would go 
as his godmother when i reazlized: who is harry's godmother? why has 
JKR not mentioned his godmother? if he has a godfather then he must 
have a godmother as well should he? just throwing this out there, if 
its already been posted please inform me. 
~ Fawkes