Klewer is a surname which originates from Germany. Nowadays this name can be found in many countries, such as The Netherlands or the USA.
Possible meaning: "Klee" is German for "clover", which is a very common plant on the hills around Berlin. The farmers who lived there named thereselves after the fields of clover.
If your last name is klewer, you can get a email@example.com email address if you go to www.klewer.com