Ellerslie Road, labelled Route 133, is a 2-lane collector highway in Prince County, Prince Edward Island, Canada. It is located northeast of the community of Tyne Valley and is located within the community of Ellerslie. Its maximum speed limit is .
The highway runs from Route 12 (Bideford) to Route 2, the Veteran's Memorial Highway, passing through the communities of Ellerslie and Mount Pleasant.
The western half of Ellerslie Road, from the Western Road (Route 2) inward 1.5 miles was first paved in 1975 and the remainder was paved in 1976.