Mahans Creek is a stream in southeastern Shannon County in the Ozarks of southern Missouri. It is a tributary of Jacks Fork.
The stream headwaters are at and the confluence with the Jacks Fork is at . The stream source area is northwest of Winona and it flows north along Missouri Route E past the community of Delaware. It then turns to the northeast and passes under Missouri Route 106 and joins the Jacks Fork just northwest of Eminence.
A variant name was "Manans Creek". Also spelled "Mahon Creek", the creek has the name of the local Mahon family.