Decker is a surname of German and Dutch origin that was used for a "roofer" or "thatcher", from decken, to cover. As a first name it joins the wave of punchy two-syllable surnames ending in -er, such as Ryker and Tucker. Decker entered the top 1000 in 2017, peaked at number 989 in 2018, slipped out again in 2019 and ranks number 1501 in 2025.