Barrel maker or pine tree
Keefer is primarily an Americanized surname of Germanic origin. It likely derives from 'Kiefer', which can refer to a cooper (barrel maker) or a pine tree. As a first name, it gained minor visibility in the late 20th century due to its association with the surname of actor Kiefer Sutherland.
Less common today
Keefer isn't in the latest US Top 1000. It last peaked at #2,644 in 1992.
Emmy-winning actor known for the series 24
US births per 5-year period, 1990–present (SSA data).
