Decker is an English surname and given name of Germanic origin, derived from the Middle German word 'deke', which means 'roof'. It was originally an occupational name for a roof tiler or builder, and later evolved into a personal name. The name has been popular in the United States since the 19th century, with its usage peaking in the late 20th century. Today, Decker is still widely used as both a surname and given name, particularly among families of German descent.
"Over time, the name Decker has seen a notable increase in popularity, with a significant jump from an average of around 20 births per year between 1990 and 2004 to consistently over 180 births annually from 2014 onwards. The peak was reached in 2022 with 219 births."