The name "Kiefer" is of German origin and is often used as a masculine given name. It is derived from the German word for "pine tree," reflecting a connection to nature. The name has gained popularity in various cultures, particularly in English-speaking countries. One of the most notable figures with this name is Kiefer Sutherland, a Canadian actor known for his roles in television and film, including the popular series 24. His prominence in the entertainment industry has contributed to the name's recognition and appeal.