The Matthew Callahan Log Cabin is located on South Third Street in Aspen, Colorado, United States. It was built in the early 1880s. In 1987 it was listed on the National Register of Historic Places along with a group of other historic properties in the city.

It was one of many log cabins built during Aspen's earliest years of settlement. Today it is one of the few buildings left in the city from that era. It has been expanded, but the original structure remains intact.

The cabin is located on the west side of South Third, just south of the intersection with West Hopkins Avenue, in Aspen's residential West End. There are a few single-family houses among the surrounding properties. The land is flat, with the foot of one of the ridges of Aspen Mountain just beyond West Hyman Avenue to the south. Many mature trees shade the houses in the neighborhood.

The building itself is a one-story structure built of rectangular hand-hewn logsstained a dark brown with mortar in between. At the joints the logs interlock. Above the logs the gable fields are sided in vertical flushboard. It is topped with a gabled shingled roof pierced in the center by a small brick chimney. A wooden screen door in the east corner of the south facade provides entrance.

Matthew may refer to:

In Christianity:

Callahan may refer to: