Organizations Here are some official ratty organizations. Their sites all have oodles of accurate and useful information to sift through. American Fancy Rat & Mouse Association Florida Rat & Mouse Club of America International Society of Rat Fanciers Midlands Rat Club Midwest Mischief Rat Lover's Club (a Minnesota Club) National Fancy Rat Society North of England Rat Society Rat Assistance & Teaching Society Rat Fan Club Rat & Mouse Club of America Rat Society of America RatsPacNW Society of Michigan Rat Fanciers World Rat Day