Ellis is an unincorporated community in the town of Sharon, Portage County, Wisconsin, United States.
Ellis is located in central Wisconsin approximately six miles northeast of Stevens Point, approximately four miles north of Custer, and approximately six miles southwest of Rosholt, where State Road 66 and Portage County Road J to the south meets with Ellis Road. Ellis is located on State Road 66 between Portage County Road K to the north and K to the south in Polonia.
Coordinates: 44°34′30.7″N 89°26′47.9″W / 44.575194°N 89.446639°W