Frostburg is a city in Allegany County, Maryland. It is located at the head of the Georges Creek Valley, 8 miles (13 km) west of Cumberland. The town is one of the first cities on the "National Road", US 40, and the western terminus of the Western Maryland Scenic Railroad. It is part of the Cumberland metropolitan area.

Frostburg was originally called Mount Pleasant until 1820, when the government developed a postal service, and the town was renamed Frostburg. Since 1973, the city has been served by what is now Interstate 68.

The City of Frostburg has an approximate year-round population of 8,075. The total population was 9,002 at the 2010 census. In addition, 5,400 students attend Frostburg State University, a public university within the University System of Maryland.

According to the U.S. Census Bureau, the city has a total area of 3.42 square miles (8.86 km²), all land.

Frostburg is located in the Allegany Mountains on the eastern slope of Big Savage Mountain. The closest cities to Frostburg are Cumberland, 8 miles (13 km) to the east, and Morgantown, West Virginia, 62 miles (100 km) to the west.

Due to its average elevation of 2,000 feet (610 m) above sea level and location near the Allegheny Front, Frostburg has a colder, wetter climate than much of the rest of the state, and falls in USDA hardiness zone 6b. Under the Köppen climate classification, it has a humid continental climate (Dfb), with cold, snowy winters, and warm, humid summers. The daily mean temperature ranges from 26.0 °F (−3.3 °C) in January to 69.0 °F (20.6 °C) in July. Sub-0 °F (−18 °C) occur on 3.8 nights per year, while, on average, there are 1.4 days with 90 °F (32 °C)+ highs, though these are not recorded every year. Due to orographic lift, driving conditions on I-68 and US 40 can be very hazardous despite timely state and local road maintenance services, and the town averages just over 80 inches (200 cm) of snowfall a season; significant falls can occur as early as October and as late as May. Frostburg's greatest one-month snowfall was 67 inches (170 cm) in January 1978, and Frostburg is second in Maryland for the greatest single-season snowfall with a total of 180 inches (460 cm) in the winter of 1995−96.

Frostburg had its beginnings back in 1811 when surveying began for the National Pike, a road used to transport crops and raw materials to East Coast markets. President Thomas Jefferson had authorized construction of the road in 1806. Meshach Frost built the first house in present-day Frostburg in 1812 and named it Highland Hall (on the present-day the site of St. Michael's Church and Rectory). This building was a popular stopping point for celebrities and dignitaries who traveled the National Pike. This would be followed by the Franklin Hotel and other hotels.

The Baltimore and Ohio Railroad (B&O) and the Chesapeake and Ohio Canal reached Cumberland in 1842 and 1850, respectively. Consequently, travel on the National Pike saw a steady decline, although travel through Frostburg did not. Coal mining was the first major economic draw, but the industry faced problems in its early manifestation. The mountains of western Maryland and Frostburg proved to make transportation of coal very difficult. Not until the completion of the railroads did the coal industry in Frostburg began to flourish. The first major coal producer was Meshech Frost, who owned a significant amount of land for mining and founded the Frostburg Coal Company. This eventually was sold to the much larger Consolidated Coal Company.