John Gill Commentary Luke 1:61

"And they said unto her, There is none of thy kindred that is called by this name." — Luke 1:61 (ASV)

And they said to her
Her neighbours and relations, there is none of your kindred that is called by this name; from which it appears, that it was usual to give names to children after their ancestors, relations, and friends. The Persic version renders it, "in your Israel there is not any one of this name": but this could not be true; for the name of Jochanan, or John, was a name very common among the Israelites, though not in Elisabeth's family, or her husband's.