There is no single name but most half human creatures names would consist of "were" meaning man and the animal or creature for example werewolf means man wolf.
Half human-half dog is called a youkai. half human-half fox is called kitsune
demigod.
there are many mythical creatures that are this combination, but two of them are Sirens and Mermaids. many people say they are the same, but it depends on what you have heard, some say that mermaids came from sirens or the other way around.
A "werewolf".
The name of a half goat, half human is a Satyr (Greek).
sphinx
it means ur half human and half jet.
He is half-Vulcan, half-human
A satyr, but it's not a cross. It's half goat (bottom half) and half human (top half). And it's a mythical creature.
Youkai Werewolf, Lycanthrop, Wolf-man
Mermaids are mythical creatures. They are said to be half-woman, half-fish. The myth seems to be that ancient fishermen saw mysterious creatures, of which they thought to be half-woman, half-fish, thus the name "mermaid". This could be true, but many people doubt it. I support it!
They were human. The virus-like species that made them that way is called "The Flood".