Is it possible for two people to have the same animagus oder patronus?

I think two people can have the same patronus: Severus and Lily had the same, James and Harry had the same, and Tonks and Lupin.

As for the animagus form, I think it depends on what Du mean. Can two people have a cat form? I think so, but I think they don't look remotely similar. McGonagall's cat form had markings around it's eyes in the shape of her glasses.

patronus no everyone has a different one but the animagus it doesnt say but imm sure u could cause theres only so many animials

It is possible for the patronus.
Harry had the same patronus as his dad, a stag.
I believe Severus had the same patronus as Lily, a doe.
I believe it sagte that Tonks's patronus transformed to be the same as Lupins, but that one I'm not completely sure on.
Animagus, I'm not sure. It's possible. It never really said. I'm sure it can be done, but there isn't much evidence to support it.

Yes i think it is possible for different people to have the same patronus.Because Snape had the same like Lily and also Harry had the same as James
About the animagus i don't think so