The Little Sac River is a stream in Greene, Polk and Dade counties the Ozarks of southwest Missouri, United States.
[1] The Little Sac headwaters start with an intermittent stream just north of Strafford in eastern Greene County.
South of Morrisville the North Dry Sac River enters the stream and the stream turns to the northwest passing under Missouri Route 215 and enters the east arm of Stockton Lake just southeast of Aldrich and passes under Missouri Route 123.
The former confluence with the Sac River (coordinates above) in Dade County lies under Stockton Lake about 12 miles to the northwest.
[2] At Aldrich, the river has an average annual discharge of 332 cubic feet per second.