Up until now, I seriously didn't know this was a name. (I wasn't aware of Kiefer Sutherland, either.) I used it for one of my characters, unaware that there were actually people with this name. I figured out the name because I was using an online foreign word translator and it said that Kiefer was the German word for "pine". It worked because the character, an animal in an animal story, was a pine marten. I really like this name.
Kiefer Sutherland's grandfather was the man who brought universal healthcare to Canada, Tommy Douglas, and thus this name has a more distinguished hint to it than other random surnames in Canada. It's a connection to the man voted as the greatest Canadian of all time.
-- Anonymous User 1/29/2010
I personally wouldn't use Kiefer. It's not a bad name, but it means "jaw" in German, a language I happen to study, and it reminds me of the word "kafir" a lot.
Kiefer is German for jaw (jaw bone) or pine tree. It may also be a variation of the German word Küfer for cooper (barrelmaker) as already noted in the meaning.
-- Anonymous User 3/4/2010
I wouldn't use this name because it sounds just like "kefir", a fermented milk drink.