Summarize this article in one sentence.
Look online for a genealogy service that will trace back the origin of your last name for you. You may need to pay a small fee to get this done and provide your surname.  For example, you may use Ancestry.com or GenealogyBank.com. You can also access free ancestry or genealogy databases online, though they may only give you general information. Usually, the paid services will uncover more detailed information about your last name. You can also hire a genealogist to determine the origin of your last name. A genealogist is trained to trace back your ancestors and find detailed information on the origin of your surname. Look for certified genealogists online or through your local university. Contact your grandparents or great aunts or uncles if they are still alive. Speak to older relatives on your father’s side if your parents are married and you inherited your father’s last name. Ask your relatives questions about the origin of your surname. They may have documents or memories that can help you find detailed information about your last name. For example, you may ask your older relatives, “Can you tell me anything about the origin of my last name?” or “Would you have any information on where our family name came from and what it means?”

Summary:
Use an online genealogy service. Hire a genealogist. Speak to older living relatives and family members for more information.