About 8.5 % of all boys' first names in the United States begin with the letter D...
This makes D a very common initial – only the letters J and A are more common to start boys' first names. On the other hand, U and X are the least common initials among boys' first names.
In the US, the most common boys’ name with the initial D is Daniel. Recently in the United States, approximately one in 140 boys has been named Daniel. Other well-known names with a D are David and Dylan. The name Drake, on the other hand, is also well known in the US and has been used occasionally in recent years, but is generally still quite rare.