Yes, absolutely. For example, there is a famous record producer named Quincy Jones. But the historical name "Quincy" was a last name, and it belonged to a very famous family in early Massachusetts history. You know the name from John Quincy Adams, the 6th President of the United States; but there were other people with the name Quincy, like Josiah Quincy (who was a colonel in the Revolutionary War) and Dorothy Quincy (who married John Hancock). An entire city, about seven miles south of Boston is also named Quincy. (There is another city in Illinois with that name as well.)
That depends on what person you are talking about. If it is John Quincy Adams, it is his middle name. For Quincy Jones, it is his first name. In the Quincy, M.E. television show, for Dr. Quincy, it is his last name.
Quincy Perkins's birth name is Benjamin Quincy Perkins.
Quincy Taylor's birth name is Quincy Dewayne Taylor.
Quincy Villanueva's birth name is Quincy Mae Nieves Villanueva.
His middle name was Quincy.
Quincy Le Near's birth name is Fields, Quincy LeNear.
Quincy Jones III's birth name is Jones III, Quincy Delight.
Allene Quincy's birth name is Allene Anderson.
John Quincy Adams is his full name.
Quincy Coleman's birth name is Mary Johns Coleman.
john Quincy Adams john Quincy Adams john Quincy Adams
Quincy, like Quincy Jones