There is no surname that is used only by Jews. There are many surnames that are used both by Jews and non-Jews. Therefore, any surname that is used by a Jewish family is Jewish, and any surname that is used by a non-Jewish family is not Jewish. So any surname can be both Jewish and non-Jewish at the same time.
Although Howell is not a stereotypically Jewish surname, any name can be a Jewish name if it is the name of a Jewish person.
It's a Jewish surname.
it i a Sicilian Jewish surname
Jewish You are really Jewish
yes it is a Jewish surname
Collins is an Irish name.
No, but a Jewish person can have any surname.
Not in its origin, but a Jewish person can have any surname.
Yes, Jacobs is a common Jewish surname.
The name Lewis is a surname for some Jewish families but it is also a surname for some non-Jewish families.
Simonson can be a Jewish surname but it need not be. A Jewish surname is simply one that is used by a Jewsih family.
Any surname used by a Jewish person is a Jewish surname, but, no, the name Clement is not usually associated with Jewishness.
There are almost no surnames that are uniquely Jewish. If an surname is or was used by a Jewish family, then it is Jewish. If the same surname is or was used by a non-Jewish family, then it is not Jewish. And both can be true at the same time. For example, Cohen is an Irish Catholic surname with no connection to Judaism, yet Cohen is also a Jewish surname related to claims of descent from the Jewish priesthood.
It can be, (but keep in mind that a Jewish person can have any surname.)