"Form of Cheyenne"
The name Sheyanne is commonly a female name from the "Native American" origin.
Sheyanne is a respelling of Cheyenne, the English given name taken from the name of the Cheyenne people. English acquired the word through French, which took it from Dakota. It belongs with other spelling variants of the same name, such as Cheyanne and Shyanne, and carries no separate meaning of its own.
Cheyenne means "An Algonquian tribe of the Great Plains. Capital city of Wyoming.".
The pronunciation of Sheyanne is shay-AN.