Rohrbaugh Cabin — also known as Allegheny Cabin — is a historic log cabin located on the eastern slope of North Fork Mountain near Petersburg, Grant County, West Virginia, USA.

Rohrbaugh Cabin was built about 1880, and is a 2+1⁄2-story, "double pen" plan log house built of tulip poplar logs. It measures 26 feet, two inches long, and 16 feet, 6 inches, deep. Also on the property are a frame storage shed, a log animal pen, stone springhouse remains, and portions of the original Smokehole roadbed.

Rohrbaugh Cabin was listed on the National Register of Historic Places in 1993.