Fort Martin Scott, Military outpost in Fredericksburg, United States.

Fort Martin Scott is a restored United States Army outpost two miles southeast of Fredericksburg on Baron's Creek. At its height the complex counted 21 buildings; today the grounds hold original and rebuilt structures from its 1848–1853 occupation, when soldiers of the 1st Infantry, 8th Infantry and 2nd Dragoons patrolled the Fredericksburg–San Antonio road.

The fort was established in 1848 to protect settlers moving westward through Texas territory. It ceased military operations in 1853 as the frontier expanded and new defenses were built elsewhere.

The 1850 Fort Martin Scott Treaty was signed in San Saba County but named for the nearest military outpost. It was negotiated by Indian agent John Rollins, Captain Hamilton W. Merrill, Texas Ranger captain J.B. McGown and interpreters John Connor and Jesse Chisholm with 12 Comanche, six Caddo, four Lipan, five Quapaw, four Tawakoni and four Waco chiefs. It was never ratified.

The fort lies 2 miles (3 km) southeast of Fredericksburg on Baron's Creek, reached by road from the town. The grounds hold the surviving buildings of a complex that once numbered 21 structures, so allow time to walk between them. The site is a Recorded Texas Historic Landmark, marked with marker number 10039.

After soldiers left, the property became a German biergarten in 1870 when a local entrepreneur repurposed the buildings. This transformation reveals how frontier military sites sometimes found new roles in their communities.