38th parallel may refer to:
38th parallel north, a circle of latitude in the Northern Hemisphere This line of latitude was used as the pre-Korean War boundary between North Korea and South Korea; see Division of Korea The term may also refer to the current border between the Koreas, the Korean Demilitarized Zone 38th parallel south, a circle of latitude in the Southern Hemisphere 38th parallel structures, a series of circular depressions roughly on the 38th parallel north 38th Parallel (band), a short-lived Christian rap-rock band that formed in 2000 "The 38th Parallel", a song by Phinehas from the 2017 album Dark Flag