Hangmans Run is a long 1st order tributary to Appoquinimink River in New Castle County, Delaware.
According to the Geographic Names Information System, it has also been known historically as:
Hangmans Run rises on the Beaver Branch divide about 0.25 miles northeast of Fieldsboro in New Castle County, Delaware. Hangmans Run then flows northeast to meet the Appoquinimink River about 0.5 miles southeast of Thomas Landing, Delaware.
Hangmans Run drains of area, receives about 43.2 in/year of precipitation, has a topographic wetness index of 612.35 and is about 5.5% forested.