The Little Zigzag River is a tributary, about long, of the Zigzag River in the U.S. state of Oregon. The Zigzag and Little Zigzag drain the Zigzag Glacier on Mount Hood, a high volcanic peak in the Cascade Range. Their combined waters flow westward to meet the Sandy River near the community of Zigzag. Little Zigzag Falls, a popular hiking destination, is on the river near U.S. Route 26 east of Zigzag.