Daegu Metro is a metro system that serves primarily the South Korean city of Daegu, operated by Daegu Transportation Corporation from 5:30AM to 0:00AM with the interval from 5 to 8 minutes between each car's arrival. With the fastest track speed at 80 km/h (50 mph), it takes 55 minutes for Line 1 and Line 2, and 48 minutes for Line 3 to reach the terminus station. As of 2015, the number of average daily passengers is 186,992 people for Line 1, 177,984 people for Line 2, and 69,127 people for Line 3.

Daegu Metro Line 1 was, until mid-2005, the only rapid transit line in the South Korean city of Daegu. It is operated by the Daegu Transit Corporation. The line color is ●scarlet.