Sometimes - not always. There are some Jewiah families in Argentina with that surname; but there are also Catholics. Kalmar is a German name.
Also, names sometimes go over from Jews to non-Jews and from non-Jews to Jews, because of name-changes, adoptions, a non-Jew marrying a Jew, etc.
Bert Kalmar's birth name is Albert Kalmar.
Kalmar's population is 36,392.
Kalmar was created in 1100.
Kalmar Union ended in 1523.
Ferenc Kalmar was born in 1928.
Carlos Kalmar was born in 1958.
The area of Kalmar is 19.5 square kilometers.
The population of Kalmar County is 233,168.
Kalmar County was created in 1634.
Kalmar SS was created in 1920.
Kalmar War happened in 1611.
Paul Kalmar is 5' 11".